diff --git a/app/DataMapper/DefaultSettings.php b/app/DataMapper/DefaultSettings.php
new file mode 100644
index 000000000000..89a8a6bff6a8
--- /dev/null
+++ b/app/DataMapper/DefaultSettings.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace App\DataMapper;
+
+use App\Models\Client;
+
+class DefaultSettings
+{
+
+	public static $per_page = 20;
+
+	public static function userSettings() : \stdClass
+	{
+		return (object)[
+	        class_basename(Client::class) => self::clientSettings(),
+	    ];
+	}
+
+	private static function clientSettings() : \stdClass
+	{
+		
+		return (object)[
+			'datatable' => (object) [
+				'per_page' => self::$per_page,
+				'column_visibility' => (object)[
+					'__checkbox' => true,
+	    			'name' => true,
+	    			'contact' => true,
+	    			'email' => true,
+	    			'client_created_at' => true,
+	    			'last_login' => true,
+	    			'balance' => true,
+	    			'__component:client-actions' => true
+				]
+			]
+		];
+
+	}
+
+}
\ No newline at end of file
diff --git a/app/Datatables/ClientDatatable.php b/app/Datatables/ClientDatatable.php
index 52f5464a3190..1e1e6178333d 100644
--- a/app/Datatables/ClientDatatable.php
+++ b/app/Datatables/ClientDatatable.php
@@ -6,6 +6,7 @@ use App\Models\Client;
 use App\Utils\Traits\MakesHash;
 use App\Utils\Traits\UserSessionAttributes;
 use Illuminate\Http\Request;
+use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Log;
 
@@ -157,8 +158,11 @@ class ClientDatatable extends EntityDatatable
         
     }
 
-    public function buildOptions()
+    public function buildOptions() : Collection
     {
+
+      $visible = auth()->user()->getColumnVisibility(Client::class);
+
         return collect([
             'per_page' => 20,
             'sort_order' => [
@@ -170,53 +174,59 @@ class ClientDatatable extends EntityDatatable
             ],
             'fields' => [
                 [
-                  'name' => '__checkbox',   // <----
+                  'name' => '__checkbox',   
                   'title' => '',
                   'titleClass' => 'center aligned',
+                  'visible' => $visible->__checkbox,
                   'dataClass' => 'center aligned'
                 ],
                 [
                   'name' => 'name',
                   'title' => trans('texts.name'),
                   'sortField' => 'name',
-                  'visible' => false,
+                  'visible' => $visible->name,
                   'dataClass' => 'center aligned'
                 ],
                 [
                   'name' => 'contact',
                   'title' => trans('texts.contact'),
                   'sortField' => 'contact',
-                  'visible' => false,
+                  'visible' => $visible->contact,
                   'dataClass' => 'center aligned'
                 ],
                 [
                   'name' => 'email',
                   'title' => trans('texts.email'),
                   'sortField' => 'email',
+                  'visible' => $visible->email,
                   'dataClass' => 'center aligned'
                 ],
                 [
                   'name' => 'client_created_at',
                   'title' => trans('texts.date_created'),
                   'sortField' => 'client_created_at',
+                  'visible' => $visible->client_created_at,
                   'dataClass' => 'center aligned'
                 ],
                 [
                   'name' => 'last_login',
                   'title' => trans('texts.last_login'),
                   'sortField' => 'last_login',
+                  'visible' => $visible->last_login,
                   'dataClass' => 'center aligned'
                 ],
                 [
                   'name' => 'balance',
                   'title' => trans('texts.balance'),
                   'sortField' => 'balance',
+                  'visible' => $visible->balance,
                   'dataClass' => 'center aligned'             
                 ],
                 [
                   'name' => '__component:client-actions',   
                   'title' => '',
                   'titleClass' => 'center aligned',
+                  'visible' => true,
                   'dataClass' => 'center aligned'
                 ]
             ]
diff --git a/app/Models/CompanyUser.php b/app/Models/CompanyUser.php
index f0e7291ba746..de5121a60ad3 100644
--- a/app/Models/CompanyUser.php
+++ b/app/Models/CompanyUser.php
@@ -6,6 +6,16 @@ class CompanyUser extends BaseModel
 {
     protected $guarded = ['id'];
 
+
+    /**
+     * The attributes that should be cast to native types.
+     *
+     * @var array
+     */
+    protected $casts = [
+        'settings' => 'collection',
+    ];
+
     public function account()
     {
         return $this->hasOne(Account::class);
@@ -13,11 +23,11 @@ class CompanyUser extends BaseModel
 
     public function user()
     {
-        return $this->hasOne(User::class)->withPivot('permissions');
+        return $this->hasOne(User::class)->withPivot('permissions', 'settings');
     }
 
     public function company()
     {
-    	return $this->hasOne(Company::class)->withPivot('permissions');
+    	return $this->hasOne(Company::class)->withPivot('permissions', 'settings');
     }
 }
diff --git a/app/Models/User.php b/app/Models/User.php
index d41306d46a5c..6ed1563346be 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -5,6 +5,7 @@ namespace App\Models;
 use App\Models\Traits\UserTrait;
 use App\Utils\Traits\MakesHash;
 use App\Utils\Traits\UserSessionAttributes;
+use App\Utils\Traits\UserSettings;
 use Illuminate\Contracts\Auth\MustVerifyEmail;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use Illuminate\Foundation\Auth\User as Authenticatable;
@@ -18,7 +19,8 @@ class User extends Authenticatable implements MustVerifyEmail
     use PresentableTrait;
     use MakesHash;
     use UserSessionAttributes;
-
+    use UserSettings;
+    
     protected $guard = 'user';
 
     protected $dates = ['deleted_at'];
@@ -55,16 +57,31 @@ class User extends Authenticatable implements MustVerifyEmail
         'slack_webhook_url',
     ];
 
+    /**
+     * Returns all companies a user has access to.
+     * 
+     * @return Collection
+     */
     public function companies()
     {
-        return $this->belongsToMany(Company::class)->withPivot('permissions');
+        return $this->belongsToMany(Company::class)->withPivot('permissions','settings');
     }
 
+    /**
+     * Returns the current company
+     * 
+     * @return Collection
+     */
     public function company()
     {
         return $this->companies()->where('company_id', $this->getCurrentCompanyId())->first();
     }
 
+    /**
+     * Returns a object of user permissions
+     * 
+     * @return stdClass
+     */
     public function permissions()
     {
         
@@ -76,26 +93,63 @@ class User extends Authenticatable implements MustVerifyEmail
         return $permissions;
     }
 
+    /**
+     * Returns a object of User Settings
+     * 
+     * @return stdClass
+     */
+    public function settings()
+    {
+        return json_decode($this->company()->pivot->settings);
+    }
+
+    /**
+     * Returns a boolean of the administrator status of the user
+     * 
+     * @return bool
+     */
     public function is_admin()
     {
         return $this->company()->pivot->is_admin;
     }
 
+    /**
+     * Returns all user created contacts
+     * 
+     * @return Collection
+     */
     public function contacts()
     {
         return $this->hasMany(Contact::class);
     }
 
+    /**
+     * Returns a boolean value if the user owns the current Entity
+     * 
+     * @param  string Entity
+     * @return bool
+     */
     public function owns($entity) : bool
     {
         return ! empty($entity->user_id) && $entity->user_id == $this->id;
     }
 
+    /**
+     * Flattens a stdClass representation of the User Permissions
+     * into a Collection
+     * 
+     * @return Collection
+     */
     public function permissionsFlat()
     {
         return collect($this->permissions())->flatten();
     }
 
+    /**
+     * Returns a array of permission for the mobile application
+     * 
+     * @return array
+     */
     public function permissionsMap()
     {
         
@@ -104,4 +158,5 @@ class User extends Authenticatable implements MustVerifyEmail
 
         return array_combine($keys, $values);
     }
+
 }
diff --git a/composer.lock b/composer.lock
index 71ddd1e7e438..0a1ce42f8c0c 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1761,16 +1761,16 @@
         },
         {
             "name": "opis/closure",
-            "version": "3.1.3",
+            "version": "3.1.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/opis/closure.git",
-                "reference": "5e9095ce871a425ab87a854b285b7766de38a7d9"
+                "reference": "41f5da65d75cf473e5ee582df8fc7f2c733ce9d6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/opis/closure/zipball/5e9095ce871a425ab87a854b285b7766de38a7d9",
-                "reference": "5e9095ce871a425ab87a854b285b7766de38a7d9",
+                "url": "https://api.github.com/repos/opis/closure/zipball/41f5da65d75cf473e5ee582df8fc7f2c733ce9d6",
+                "reference": "41f5da65d75cf473e5ee582df8fc7f2c733ce9d6",
                 "shasum": ""
             },
             "require": {
@@ -1818,7 +1818,7 @@
                 "serialization",
                 "serialize"
             ],
-            "time": "2019-01-06T22:07:38+00:00"
+            "time": "2019-01-14T14:45:33+00:00"
         },
         {
             "name": "paragonie/random_compat",
diff --git a/config/app.php b/config/app.php
index f57e17cfef04..a6deae9f9a10 100644
--- a/config/app.php
+++ b/config/app.php
@@ -227,7 +227,6 @@ return [
         'URL'          => Illuminate\Support\Facades\URL::class,
         'Validator'    => Illuminate\Support\Facades\Validator::class,
         'View'         => Illuminate\Support\Facades\View::class,
-        'Datatables' => Yajra\Datatables\Facades\Datatables::class,
 
         /*
          * Dependency Facades
diff --git a/database/migrations/2014_10_13_000000_create_users_table.php b/database/migrations/2014_10_13_000000_create_users_table.php
index 5d0e8d459365..68dcbe023385 100644
--- a/database/migrations/2014_10_13_000000_create_users_table.php
+++ b/database/migrations/2014_10_13_000000_create_users_table.php
@@ -151,6 +151,12 @@ class CreateUsersTable extends Migration
             $table->string('custom_label2')->nullable();
             $table->string('custom_value2')->nullable();
 
+            $table->string('custom_label3')->nullable();
+            $table->string('custom_value3')->nullable();
+
+            $table->string('custom_label4')->nullable();
+            $table->string('custom_value4')->nullable();
+
             $table->string('custom_client_label1')->nullable();
             $table->string('custom_client_label2')->nullable();
 
@@ -191,6 +197,7 @@ class CreateUsersTable extends Migration
             $table->unsignedInteger('account_id');
             $table->unsignedInteger('user_id')->index();
             $table->text('permissions');
+            $table->text('settings');
             $table->boolean('is_owner')->default(false);
             $table->boolean('is_admin');
             $table->boolean('is_locked')->default(false); // locks user out of account
diff --git a/database/seeds/UsersTableSeeder.php b/database/seeds/UsersTableSeeder.php
index 854da855f6c9..433e3939a4ce 100644
--- a/database/seeds/UsersTableSeeder.php
+++ b/database/seeds/UsersTableSeeder.php
@@ -1,5 +1,6 @@
 <?php
 
+use App\DataMapper\DefaultSettings;
 use App\Models\Account;
 use App\Models\Client;
 use App\Models\ClientContact;
@@ -47,11 +48,14 @@ class UsersTableSeeder extends Seeder
                                     'create_client'
                                 ]);
 
+        $userSettings = DefaultSettings::userSettings();
+
         $user->companies()->attach($company->id, [
             'account_id' => $account->id,
             'is_owner' => 1,
             'is_admin' => 1,
             'permissions' => $userPermissions->toJson(),
+            'settings' => json_encode($userSettings),
             'is_locked' => 0,
         ]);
 
diff --git a/public/js/client_create.js b/public/js/client_create.js
index e634a94d16aa..e980e5bf029f 100644
--- a/public/js/client_create.js
+++ b/public/js/client_create.js
@@ -3964,7 +3964,7 @@ if(false) {
 
 "use strict";
 /* WEBPACK VAR INJECTION */(function(global, setImmediate) {/*!
- * Vue.js v2.5.17
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -3974,8 +3974,8 @@ if(false) {
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -3993,7 +3993,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -4015,7 +4015,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -4055,7 +4055,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -4087,12 +4087,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -4104,7 +4104,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -4146,11 +4146,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -4212,10 +4212,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -4224,13 +4226,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -4254,6 +4258,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -4275,6 +4281,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -4319,6 +4330,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -4401,11 +4414,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -4490,7 +4509,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -4517,7 +4536,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -4631,7 +4650,6 @@ if (true) {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -4660,6 +4678,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if ("development" !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -4671,13 +4695,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -4748,7 +4773,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -4762,6 +4790,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -4839,10 +4868,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -4850,14 +4880,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -4873,17 +4903,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -4924,7 +4954,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -4940,10 +4970,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -4972,6 +5002,8 @@ function defineReactive (
       if ("development" !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -5015,7 +5047,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -5102,7 +5134,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -5425,15 +5461,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -5486,6 +5529,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -5593,11 +5638,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -5664,6 +5708,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -5710,7 +5797,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -5788,9 +5874,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -5871,6 +5959,16 @@ if (true) {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -5892,9 +5990,11 @@ if (true) {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -5903,7 +6003,8 @@ if (true) {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -6001,14 +6102,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -6018,7 +6119,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -6273,10 +6377,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -6285,7 +6393,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -6296,7 +6404,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -6323,7 +6431,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -6386,37 +6494,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -6441,8 +6553,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -6452,7 +6562,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -6581,6 +6691,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -6610,31 +6728,20 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -6757,7 +6864,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -6897,7 +7010,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -6941,6 +7053,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -6983,7 +7098,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -7030,6 +7145,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if ("development" !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -7037,6 +7157,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -7062,6 +7184,7 @@ var Watcher = function Watcher (
     this.user = !!options.user;
     this.lazy = !!options.lazy;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
     this.deep = this.user = this.lazy = this.sync = false;
   }
@@ -7082,7 +7205,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       "development" !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -7141,13 +7264,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -7219,11 +7340,9 @@ Watcher.prototype.evaluate = function evaluate () {
  * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    this$1.deps[i].depend();
+    this.deps[i].depend();
   }
 };
 
@@ -7231,8 +7350,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -7242,7 +7359,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -7307,8 +7424,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -7319,7 +7436,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -7440,17 +7557,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if ("development" !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -7479,13 +7594,19 @@ function createComputedGetter (key) {
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (true) {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -7503,7 +7624,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -7545,7 +7666,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (true) {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -7575,7 +7696,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -7601,7 +7726,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (true) {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -7610,7 +7735,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -7682,9 +7807,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -7714,19 +7840,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -7814,12 +7928,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -8025,24 +8140,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (true) {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -8057,33 +8175,15 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -8095,9 +8195,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -8246,25 +8344,17 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -8279,20 +8369,43 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -8380,7 +8493,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -8462,15 +8575,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (true) {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -8488,14 +8601,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (true) {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -8512,15 +8617,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (true) {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if ("development" !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -8613,8 +8714,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -8857,6 +8956,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -8920,10 +9021,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -8983,11 +9082,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -9011,7 +9110,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -9053,7 +9152,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17';
+Vue.version = '2.5.21';
 
 /*  */
 
@@ -9331,20 +9430,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -9362,7 +9460,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -9463,13 +9561,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -9570,7 +9668,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -9578,6 +9676,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -9629,7 +9728,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -9784,20 +9883,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -9811,7 +9910,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -9855,11 +9954,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -9900,6 +10011,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (true) {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -10041,7 +10155,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -10053,12 +10167,12 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -10089,7 +10203,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -10098,7 +10212,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -10133,8 +10247,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -10154,7 +10268,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -10265,7 +10379,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -10349,7 +10463,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -10367,7 +10481,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -10405,7 +10519,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
@@ -10569,6 +10683,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -10584,18 +10710,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -10696,7 +10810,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -10731,12 +10845,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index$1, expressionPos, expressionEndPos;
 
 
 
@@ -11017,7 +11126,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -11030,12 +11139,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -11066,14 +11173,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -11167,7 +11274,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -11328,10 +11435,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -11345,7 +11454,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -11370,7 +11479,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -11394,20 +11503,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -11510,11 +11619,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -11568,8 +11678,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -11801,7 +11915,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -11890,7 +12004,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -11899,7 +12013,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -12110,18 +12224,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -12187,6 +12298,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -12201,7 +12316,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -12266,7 +12381,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -12304,21 +12419,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -12329,6 +12433,25 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      restoreActiveInstance();
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -12372,17 +12495,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -12408,6 +12520,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -12445,7 +12560,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -12478,7 +12593,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
@@ -12539,7 +12654,7 @@ if (inBrowser) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -12625,7 +12740,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -12669,7 +12784,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -12681,7 +12796,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-}
+};
 
 /*  */
 
@@ -12710,13 +12825,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -12731,11 +12839,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -12816,7 +12919,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -12933,12 +13036,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -12964,12 +13061,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -13018,7 +13112,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -13203,7 +13297,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -13327,8 +13422,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    if (true) {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transition-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -13366,7 +13473,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -13519,6 +13626,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          "development" !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -13667,16 +13782,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -13743,15 +13848,15 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-var model$2 = {
+var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass$1,
   style$1,
-  model$2
-]
+  model$1
+];
 
 /*  */
 
@@ -13773,7 +13878,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -13937,16 +14042,19 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -13969,8 +14077,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -13998,7 +14105,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -14035,7 +14141,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -14084,10 +14189,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -14095,9 +14204,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -14115,6 +14225,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -14123,7 +14237,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -14133,7 +14247,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -14149,7 +14266,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -14290,10 +14415,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -14385,7 +14510,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -14423,13 +14548,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -14467,7 +14595,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -14640,6 +14768,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -14811,6 +14941,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
 var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
diff --git a/public/js/client_create.min.js b/public/js/client_create.min.js
index e634a94d16aa..e980e5bf029f 100644
--- a/public/js/client_create.min.js
+++ b/public/js/client_create.min.js
@@ -3964,7 +3964,7 @@ if(false) {
 
 "use strict";
 /* WEBPACK VAR INJECTION */(function(global, setImmediate) {/*!
- * Vue.js v2.5.17
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -3974,8 +3974,8 @@ if(false) {
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -3993,7 +3993,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -4015,7 +4015,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -4055,7 +4055,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -4087,12 +4087,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -4104,7 +4104,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -4146,11 +4146,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -4212,10 +4212,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -4224,13 +4226,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -4254,6 +4258,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -4275,6 +4281,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -4319,6 +4330,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -4401,11 +4414,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -4490,7 +4509,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -4517,7 +4536,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -4631,7 +4650,6 @@ if (true) {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -4660,6 +4678,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if ("development" !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -4671,13 +4695,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -4748,7 +4773,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -4762,6 +4790,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -4839,10 +4868,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -4850,14 +4880,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -4873,17 +4903,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -4924,7 +4954,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -4940,10 +4970,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -4972,6 +5002,8 @@ function defineReactive (
       if ("development" !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -5015,7 +5047,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -5102,7 +5134,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -5425,15 +5461,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -5486,6 +5529,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -5593,11 +5638,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -5664,6 +5708,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -5710,7 +5797,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -5788,9 +5874,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -5871,6 +5959,16 @@ if (true) {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -5892,9 +5990,11 @@ if (true) {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -5903,7 +6003,8 @@ if (true) {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -6001,14 +6102,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -6018,7 +6119,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -6273,10 +6377,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -6285,7 +6393,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -6296,7 +6404,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -6323,7 +6431,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -6386,37 +6494,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -6441,8 +6553,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -6452,7 +6562,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -6581,6 +6691,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -6610,31 +6728,20 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -6757,7 +6864,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -6897,7 +7010,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -6941,6 +7053,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -6983,7 +7098,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -7030,6 +7145,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if ("development" !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -7037,6 +7157,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -7062,6 +7184,7 @@ var Watcher = function Watcher (
     this.user = !!options.user;
     this.lazy = !!options.lazy;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
     this.deep = this.user = this.lazy = this.sync = false;
   }
@@ -7082,7 +7205,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       "development" !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -7141,13 +7264,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -7219,11 +7340,9 @@ Watcher.prototype.evaluate = function evaluate () {
  * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    this$1.deps[i].depend();
+    this.deps[i].depend();
   }
 };
 
@@ -7231,8 +7350,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -7242,7 +7359,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -7307,8 +7424,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -7319,7 +7436,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -7440,17 +7557,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if ("development" !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -7479,13 +7594,19 @@ function createComputedGetter (key) {
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (true) {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -7503,7 +7624,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -7545,7 +7666,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (true) {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -7575,7 +7696,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -7601,7 +7726,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (true) {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -7610,7 +7735,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -7682,9 +7807,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -7714,19 +7840,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -7814,12 +7928,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -8025,24 +8140,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (true) {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -8057,33 +8175,15 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -8095,9 +8195,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -8246,25 +8344,17 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -8279,20 +8369,43 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -8380,7 +8493,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -8462,15 +8575,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (true) {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -8488,14 +8601,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (true) {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -8512,15 +8617,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (true) {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if ("development" !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -8613,8 +8714,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -8857,6 +8956,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -8920,10 +9021,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -8983,11 +9082,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -9011,7 +9110,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -9053,7 +9152,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17';
+Vue.version = '2.5.21';
 
 /*  */
 
@@ -9331,20 +9430,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -9362,7 +9460,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -9463,13 +9561,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -9570,7 +9668,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -9578,6 +9676,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -9629,7 +9728,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -9784,20 +9883,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -9811,7 +9910,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -9855,11 +9954,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -9900,6 +10011,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (true) {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -10041,7 +10155,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -10053,12 +10167,12 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -10089,7 +10203,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -10098,7 +10212,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -10133,8 +10247,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -10154,7 +10268,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -10265,7 +10379,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -10349,7 +10463,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -10367,7 +10481,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -10405,7 +10519,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
@@ -10569,6 +10683,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -10584,18 +10710,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -10696,7 +10810,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -10731,12 +10845,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index$1, expressionPos, expressionEndPos;
 
 
 
@@ -11017,7 +11126,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -11030,12 +11139,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -11066,14 +11173,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -11167,7 +11274,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -11328,10 +11435,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -11345,7 +11454,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -11370,7 +11479,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -11394,20 +11503,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -11510,11 +11619,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -11568,8 +11678,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -11801,7 +11915,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -11890,7 +12004,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -11899,7 +12013,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -12110,18 +12224,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -12187,6 +12298,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -12201,7 +12316,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -12266,7 +12381,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -12304,21 +12419,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -12329,6 +12433,25 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      restoreActiveInstance();
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -12372,17 +12495,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -12408,6 +12520,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -12445,7 +12560,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -12478,7 +12593,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
@@ -12539,7 +12654,7 @@ if (inBrowser) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -12625,7 +12740,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -12669,7 +12784,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -12681,7 +12796,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-}
+};
 
 /*  */
 
@@ -12710,13 +12825,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -12731,11 +12839,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -12816,7 +12919,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -12933,12 +13036,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -12964,12 +13061,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -13018,7 +13112,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -13203,7 +13297,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -13327,8 +13422,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    if (true) {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transition-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -13366,7 +13473,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -13519,6 +13626,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          "development" !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -13667,16 +13782,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -13743,15 +13848,15 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-var model$2 = {
+var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass$1,
   style$1,
-  model$2
-]
+  model$1
+];
 
 /*  */
 
@@ -13773,7 +13878,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -13937,16 +14042,19 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -13969,8 +14077,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -13998,7 +14105,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -14035,7 +14141,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -14084,10 +14189,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -14095,9 +14204,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -14115,6 +14225,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -14123,7 +14237,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -14133,7 +14247,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -14149,7 +14266,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -14290,10 +14415,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -14385,7 +14510,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -14423,13 +14548,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -14467,7 +14595,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -14640,6 +14768,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -14811,6 +14941,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
 var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
diff --git a/public/js/client_edit.js b/public/js/client_edit.js
index ed3feb58d624..5ad281028ed7 100644
--- a/public/js/client_edit.js
+++ b/public/js/client_edit.js
@@ -23346,7 +23346,7 @@ if(false) {
 
 "use strict";
 /* WEBPACK VAR INJECTION */(function(global, setImmediate) {/*!
- * Vue.js v2.5.17
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -23356,8 +23356,8 @@ if(false) {
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -23375,7 +23375,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -23397,7 +23397,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -23437,7 +23437,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -23469,12 +23469,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -23486,7 +23486,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -23528,11 +23528,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -23594,10 +23594,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -23606,13 +23608,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -23636,6 +23640,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -23657,6 +23663,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -23701,6 +23712,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -23783,11 +23796,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -23872,7 +23891,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -23899,7 +23918,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -24013,7 +24032,6 @@ if (true) {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -24042,6 +24060,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if ("development" !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -24053,13 +24077,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -24130,7 +24155,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -24144,6 +24172,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -24221,10 +24250,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -24232,14 +24262,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -24255,17 +24285,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -24306,7 +24336,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -24322,10 +24352,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -24354,6 +24384,8 @@ function defineReactive (
       if ("development" !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -24397,7 +24429,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -24484,7 +24516,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -24807,15 +24843,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -24868,6 +24911,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -24975,11 +25020,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -25046,6 +25090,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -25092,7 +25179,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -25170,9 +25256,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -25253,6 +25341,16 @@ if (true) {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -25274,9 +25372,11 @@ if (true) {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -25285,7 +25385,8 @@ if (true) {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -25383,14 +25484,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -25400,7 +25501,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -25655,10 +25759,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -25667,7 +25775,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -25678,7 +25786,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -25705,7 +25813,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -25768,37 +25876,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -25823,8 +25935,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -25834,7 +25944,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -25963,6 +26073,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -25992,31 +26110,20 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -26139,7 +26246,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -26279,7 +26392,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -26323,6 +26435,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -26365,7 +26480,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -26412,6 +26527,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if ("development" !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -26419,6 +26539,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -26444,6 +26566,7 @@ var Watcher = function Watcher (
     this.user = !!options.user;
     this.lazy = !!options.lazy;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
     this.deep = this.user = this.lazy = this.sync = false;
   }
@@ -26464,7 +26587,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       "development" !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -26523,13 +26646,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -26601,11 +26722,9 @@ Watcher.prototype.evaluate = function evaluate () {
  * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    this$1.deps[i].depend();
+    this.deps[i].depend();
   }
 };
 
@@ -26613,8 +26732,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -26624,7 +26741,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -26689,8 +26806,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -26701,7 +26818,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -26822,17 +26939,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if ("development" !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -26861,13 +26976,19 @@ function createComputedGetter (key) {
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (true) {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -26885,7 +27006,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -26927,7 +27048,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (true) {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -26957,7 +27078,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -26983,7 +27108,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (true) {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -26992,7 +27117,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -27064,9 +27189,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -27096,19 +27222,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -27196,12 +27310,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -27407,24 +27522,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (true) {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -27439,33 +27557,15 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -27477,9 +27577,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -27628,25 +27726,17 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -27661,20 +27751,43 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -27762,7 +27875,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -27844,15 +27957,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (true) {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -27870,14 +27983,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (true) {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -27894,15 +27999,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (true) {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if ("development" !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -27995,8 +28096,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -28239,6 +28338,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -28302,10 +28403,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -28365,11 +28464,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -28393,7 +28492,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -28435,7 +28534,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17';
+Vue.version = '2.5.21';
 
 /*  */
 
@@ -28713,20 +28812,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -28744,7 +28842,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -28845,13 +28943,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -28952,7 +29050,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -28960,6 +29058,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -29011,7 +29110,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -29166,20 +29265,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -29193,7 +29292,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -29237,11 +29336,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -29282,6 +29393,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (true) {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -29423,7 +29537,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -29435,12 +29549,12 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -29471,7 +29585,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -29480,7 +29594,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -29515,8 +29629,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -29536,7 +29650,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -29647,7 +29761,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -29731,7 +29845,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -29749,7 +29863,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -29787,7 +29901,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
@@ -29951,6 +30065,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -29966,18 +30092,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -30078,7 +30192,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -30113,12 +30227,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index$1, expressionPos, expressionEndPos;
 
 
 
@@ -30399,7 +30508,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -30412,12 +30521,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -30448,14 +30555,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -30549,7 +30656,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -30710,10 +30817,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -30727,7 +30836,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -30752,7 +30861,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -30776,20 +30885,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -30892,11 +31001,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -30950,8 +31060,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -31183,7 +31297,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -31272,7 +31386,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -31281,7 +31395,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -31492,18 +31606,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -31569,6 +31680,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -31583,7 +31698,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -31648,7 +31763,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -31686,21 +31801,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -31711,6 +31815,25 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      restoreActiveInstance();
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -31754,17 +31877,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -31790,6 +31902,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -31827,7 +31942,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -31860,7 +31975,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
@@ -31921,7 +32036,7 @@ if (inBrowser) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -32007,7 +32122,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -32051,7 +32166,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -32063,7 +32178,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-}
+};
 
 /*  */
 
@@ -32092,13 +32207,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -32113,11 +32221,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -32198,7 +32301,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -32315,12 +32418,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -32346,12 +32443,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -32400,7 +32494,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -32585,7 +32679,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -32709,8 +32804,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    if (true) {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transition-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -32748,7 +32855,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -32901,6 +33008,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          "development" !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -33049,16 +33164,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -33125,15 +33230,15 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-var model$2 = {
+var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass$1,
   style$1,
-  model$2
-]
+  model$1
+];
 
 /*  */
 
@@ -33155,7 +33260,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -33319,16 +33424,19 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -33351,8 +33459,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -33380,7 +33487,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -33417,7 +33523,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -33466,10 +33571,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -33477,9 +33586,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -33497,6 +33607,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -33505,7 +33619,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -33515,7 +33629,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -33531,7 +33648,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -33672,10 +33797,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -33767,7 +33892,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -33805,13 +33930,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -33849,7 +33977,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -34022,6 +34150,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -34193,6 +34323,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
 var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
diff --git a/public/js/client_edit.min.js b/public/js/client_edit.min.js
index ed3feb58d624..5ad281028ed7 100644
--- a/public/js/client_edit.min.js
+++ b/public/js/client_edit.min.js
@@ -23346,7 +23346,7 @@ if(false) {
 
 "use strict";
 /* WEBPACK VAR INJECTION */(function(global, setImmediate) {/*!
- * Vue.js v2.5.17
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -23356,8 +23356,8 @@ if(false) {
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -23375,7 +23375,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -23397,7 +23397,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -23437,7 +23437,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -23469,12 +23469,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -23486,7 +23486,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -23528,11 +23528,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -23594,10 +23594,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -23606,13 +23608,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -23636,6 +23640,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -23657,6 +23663,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -23701,6 +23712,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -23783,11 +23796,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -23872,7 +23891,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -23899,7 +23918,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -24013,7 +24032,6 @@ if (true) {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -24042,6 +24060,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if ("development" !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -24053,13 +24077,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -24130,7 +24155,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -24144,6 +24172,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -24221,10 +24250,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -24232,14 +24262,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -24255,17 +24285,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -24306,7 +24336,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -24322,10 +24352,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -24354,6 +24384,8 @@ function defineReactive (
       if ("development" !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -24397,7 +24429,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -24484,7 +24516,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -24807,15 +24843,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -24868,6 +24911,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -24975,11 +25020,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -25046,6 +25090,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -25092,7 +25179,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -25170,9 +25256,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -25253,6 +25341,16 @@ if (true) {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -25274,9 +25372,11 @@ if (true) {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -25285,7 +25385,8 @@ if (true) {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -25383,14 +25484,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -25400,7 +25501,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -25655,10 +25759,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -25667,7 +25775,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -25678,7 +25786,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -25705,7 +25813,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -25768,37 +25876,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -25823,8 +25935,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -25834,7 +25944,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -25963,6 +26073,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -25992,31 +26110,20 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -26139,7 +26246,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -26279,7 +26392,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -26323,6 +26435,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -26365,7 +26480,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -26412,6 +26527,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if ("development" !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -26419,6 +26539,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -26444,6 +26566,7 @@ var Watcher = function Watcher (
     this.user = !!options.user;
     this.lazy = !!options.lazy;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
     this.deep = this.user = this.lazy = this.sync = false;
   }
@@ -26464,7 +26587,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       "development" !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -26523,13 +26646,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -26601,11 +26722,9 @@ Watcher.prototype.evaluate = function evaluate () {
  * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    this$1.deps[i].depend();
+    this.deps[i].depend();
   }
 };
 
@@ -26613,8 +26732,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -26624,7 +26741,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -26689,8 +26806,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -26701,7 +26818,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -26822,17 +26939,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if ("development" !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -26861,13 +26976,19 @@ function createComputedGetter (key) {
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (true) {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -26885,7 +27006,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -26927,7 +27048,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (true) {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -26957,7 +27078,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -26983,7 +27108,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (true) {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -26992,7 +27117,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -27064,9 +27189,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -27096,19 +27222,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -27196,12 +27310,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -27407,24 +27522,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (true) {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -27439,33 +27557,15 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -27477,9 +27577,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -27628,25 +27726,17 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -27661,20 +27751,43 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -27762,7 +27875,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -27844,15 +27957,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (true) {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -27870,14 +27983,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (true) {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -27894,15 +27999,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (true) {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if ("development" !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -27995,8 +28096,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -28239,6 +28338,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -28302,10 +28403,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -28365,11 +28464,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -28393,7 +28492,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -28435,7 +28534,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17';
+Vue.version = '2.5.21';
 
 /*  */
 
@@ -28713,20 +28812,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -28744,7 +28842,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -28845,13 +28943,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -28952,7 +29050,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -28960,6 +29058,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -29011,7 +29110,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -29166,20 +29265,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -29193,7 +29292,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -29237,11 +29336,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -29282,6 +29393,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (true) {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -29423,7 +29537,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -29435,12 +29549,12 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -29471,7 +29585,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -29480,7 +29594,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -29515,8 +29629,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -29536,7 +29650,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -29647,7 +29761,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -29731,7 +29845,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -29749,7 +29863,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -29787,7 +29901,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
@@ -29951,6 +30065,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -29966,18 +30092,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -30078,7 +30192,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -30113,12 +30227,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index$1, expressionPos, expressionEndPos;
 
 
 
@@ -30399,7 +30508,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -30412,12 +30521,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -30448,14 +30555,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -30549,7 +30656,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -30710,10 +30817,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -30727,7 +30836,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -30752,7 +30861,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -30776,20 +30885,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -30892,11 +31001,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -30950,8 +31060,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -31183,7 +31297,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -31272,7 +31386,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -31281,7 +31395,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -31492,18 +31606,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -31569,6 +31680,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -31583,7 +31698,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -31648,7 +31763,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -31686,21 +31801,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -31711,6 +31815,25 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      restoreActiveInstance();
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -31754,17 +31877,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -31790,6 +31902,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -31827,7 +31942,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -31860,7 +31975,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
@@ -31921,7 +32036,7 @@ if (inBrowser) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -32007,7 +32122,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -32051,7 +32166,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -32063,7 +32178,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-}
+};
 
 /*  */
 
@@ -32092,13 +32207,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -32113,11 +32221,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -32198,7 +32301,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -32315,12 +32418,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -32346,12 +32443,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -32400,7 +32494,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -32585,7 +32679,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -32709,8 +32804,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    if (true) {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transition-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -32748,7 +32855,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -32901,6 +33008,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          "development" !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -33049,16 +33164,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -33125,15 +33230,15 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-var model$2 = {
+var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass$1,
   style$1,
-  model$2
-]
+  model$1
+];
 
 /*  */
 
@@ -33155,7 +33260,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -33319,16 +33424,19 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -33351,8 +33459,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -33380,7 +33487,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -33417,7 +33523,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -33466,10 +33571,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -33477,9 +33586,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -33497,6 +33607,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -33505,7 +33619,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -33515,7 +33629,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -33531,7 +33648,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -33672,10 +33797,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -33767,7 +33892,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -33805,13 +33930,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -33849,7 +33977,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -34022,6 +34150,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -34193,6 +34323,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
 var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
diff --git a/public/js/client_list.js b/public/js/client_list.js
index 2ef636df8933..34f0df52523b 100644
--- a/public/js/client_list.js
+++ b/public/js/client_list.js
@@ -4326,7 +4326,7 @@ exports = module.exports = __webpack_require__("./node_modules/css-loader/lib/cs
 
 
 // module
-exports.push([module.i, "\n.pagination {\n  margin: 0;\n  float: right;\n}\n.pagination a.page {\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 10px;\n  margin-right: 2px;\n}\n.pagination a.page.active {\n  color: white;\n  background-color: #337ab7;\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 10px;\n  margin-right: 2px;\n}\n.pagination a.btn-nav {\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 7px;\n  margin-right: 2px;\n}\n.pagination a.btn-nav.disabled {\n  color: lightgray;\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 7px;\n  margin-right: 2px;\n  cursor: not-allowed;\n}\n.pagination-info {\n  float: left;\n}\nth {\n  background: #777777;\n  color: #fff;\n}\n.sortable th i:hover {\n  color: #fff;\n}\n\n", ""]);
+exports.push([module.i, "\n.pagination {\n  margin: 0;\n  float: right;\n}\n.pagination a.page {\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 10px;\n  margin-right: 2px;\n}\n.pagination a.page.active {\n  color: white;\n  background-color: #337ab7;\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 10px;\n  margin-right: 2px;\n}\n.pagination a.btn-nav {\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 7px;\n  margin-right: 2px;\n}\n.pagination a.btn-nav.disabled {\n  color: lightgray;\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 7px;\n  margin-right: 2px;\n  cursor: not-allowed;\n}\n.pagination-info {\n  float: left;\n}\nth {\n  background: #777777;\n  color: #fff;\n}\n\n", ""]);
 
 // exports
 
@@ -22540,7 +22540,6 @@ exports.clearImmediate = (typeof self !== "undefined" && self.clearImmediate) ||
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = {
     mounted: function () {
-        console.dir('loaded');
     }
 };
 
diff --git a/public/js/client_list.min.js b/public/js/client_list.min.js
index 2ef636df8933..34f0df52523b 100644
--- a/public/js/client_list.min.js
+++ b/public/js/client_list.min.js
@@ -4326,7 +4326,7 @@ exports = module.exports = __webpack_require__("./node_modules/css-loader/lib/cs
 
 
 // module
-exports.push([module.i, "\n.pagination {\n  margin: 0;\n  float: right;\n}\n.pagination a.page {\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 10px;\n  margin-right: 2px;\n}\n.pagination a.page.active {\n  color: white;\n  background-color: #337ab7;\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 10px;\n  margin-right: 2px;\n}\n.pagination a.btn-nav {\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 7px;\n  margin-right: 2px;\n}\n.pagination a.btn-nav.disabled {\n  color: lightgray;\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 7px;\n  margin-right: 2px;\n  cursor: not-allowed;\n}\n.pagination-info {\n  float: left;\n}\nth {\n  background: #777777;\n  color: #fff;\n}\n.sortable th i:hover {\n  color: #fff;\n}\n\n", ""]);
+exports.push([module.i, "\n.pagination {\n  margin: 0;\n  float: right;\n}\n.pagination a.page {\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 10px;\n  margin-right: 2px;\n}\n.pagination a.page.active {\n  color: white;\n  background-color: #337ab7;\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 10px;\n  margin-right: 2px;\n}\n.pagination a.btn-nav {\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 7px;\n  margin-right: 2px;\n}\n.pagination a.btn-nav.disabled {\n  color: lightgray;\n  border: 1px solid lightgray;\n  border-radius: 3px;\n  padding: 5px 7px;\n  margin-right: 2px;\n  cursor: not-allowed;\n}\n.pagination-info {\n  float: left;\n}\nth {\n  background: #777777;\n  color: #fff;\n}\n\n", ""]);
 
 // exports
 
@@ -22540,7 +22540,6 @@ exports.clearImmediate = (typeof self !== "undefined" && self.clearImmediate) ||
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = {
     mounted: function () {
-        console.dir('loaded');
     }
 };
 
diff --git a/public/js/coreui.js b/public/js/coreui.js
index c8a6321673a9..3817e663da9b 100644
--- a/public/js/coreui.js
+++ b/public/js/coreui.js
@@ -69,7 +69,7 @@
 /***/ (function(module, exports, __webpack_require__) {
 
 /*!
-  * CoreUI v2.0.18 (https://coreui.io)
+  * CoreUI v2.1.4 (https://coreui.io)
   * Copyright 2018 Łukasz Holeczek
   * Licensed under MIT (https://coreui.io)
   */
@@ -82,6 +82,1282 @@
   $ = $ && $.hasOwnProperty('default') ? $['default'] : $;
   PerfectScrollbar = PerfectScrollbar && PerfectScrollbar.hasOwnProperty('default') ? PerfectScrollbar['default'] : PerfectScrollbar;
 
+  var _isObject = function (it) {
+    return typeof it === 'object' ? it !== null : typeof it === 'function';
+  };
+
+  var toString = {}.toString;
+
+  var _cof = function (it) {
+    return toString.call(it).slice(8, -1);
+  };
+
+  function createCommonjsModule(fn, module) {
+  	return module = { exports: {} }, fn(module, module.exports), module.exports;
+  }
+
+  var _core = createCommonjsModule(function (module) {
+  var core = module.exports = { version: '2.6.0' };
+  if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
+  });
+  var _core_1 = _core.version;
+
+  var _global = createCommonjsModule(function (module) {
+  // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
+  var global = module.exports = typeof window != 'undefined' && window.Math == Math
+    ? window : typeof self != 'undefined' && self.Math == Math ? self
+    // eslint-disable-next-line no-new-func
+    : Function('return this')();
+  if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
+  });
+
+  var _library = false;
+
+  var _shared = createCommonjsModule(function (module) {
+  var SHARED = '__core-js_shared__';
+  var store = _global[SHARED] || (_global[SHARED] = {});
+
+  (module.exports = function (key, value) {
+    return store[key] || (store[key] = value !== undefined ? value : {});
+  })('versions', []).push({
+    version: _core.version,
+    mode: _library ? 'pure' : 'global',
+    copyright: '© 2018 Denis Pushkarev (zloirock.ru)'
+  });
+  });
+
+  var id = 0;
+  var px = Math.random();
+  var _uid = function (key) {
+    return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
+  };
+
+  var _wks = createCommonjsModule(function (module) {
+  var store = _shared('wks');
+
+  var Symbol = _global.Symbol;
+  var USE_SYMBOL = typeof Symbol == 'function';
+
+  var $exports = module.exports = function (name) {
+    return store[name] || (store[name] =
+      USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : _uid)('Symbol.' + name));
+  };
+
+  $exports.store = store;
+  });
+
+  // 7.2.8 IsRegExp(argument)
+
+
+  var MATCH = _wks('match');
+  var _isRegexp = function (it) {
+    var isRegExp;
+    return _isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : _cof(it) == 'RegExp');
+  };
+
+  var _anObject = function (it) {
+    if (!_isObject(it)) throw TypeError(it + ' is not an object!');
+    return it;
+  };
+
+  var _aFunction = function (it) {
+    if (typeof it != 'function') throw TypeError(it + ' is not a function!');
+    return it;
+  };
+
+  // 7.3.20 SpeciesConstructor(O, defaultConstructor)
+
+
+  var SPECIES = _wks('species');
+  var _speciesConstructor = function (O, D) {
+    var C = _anObject(O).constructor;
+    var S;
+    return C === undefined || (S = _anObject(C)[SPECIES]) == undefined ? D : _aFunction(S);
+  };
+
+  // 7.1.4 ToInteger
+  var ceil = Math.ceil;
+  var floor = Math.floor;
+  var _toInteger = function (it) {
+    return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
+  };
+
+  // 7.2.1 RequireObjectCoercible(argument)
+  var _defined = function (it) {
+    if (it == undefined) throw TypeError("Can't call method on  " + it);
+    return it;
+  };
+
+  // true  -> String#at
+  // false -> String#codePointAt
+  var _stringAt = function (TO_STRING) {
+    return function (that, pos) {
+      var s = String(_defined(that));
+      var i = _toInteger(pos);
+      var l = s.length;
+      var a, b;
+      if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
+      a = s.charCodeAt(i);
+      return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+        ? TO_STRING ? s.charAt(i) : a
+        : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+    };
+  };
+
+  var at = _stringAt(true);
+
+   // `AdvanceStringIndex` abstract operation
+  // https://tc39.github.io/ecma262/#sec-advancestringindex
+  var _advanceStringIndex = function (S, index, unicode) {
+    return index + (unicode ? at(S, index).length : 1);
+  };
+
+  // 7.1.15 ToLength
+
+  var min = Math.min;
+  var _toLength = function (it) {
+    return it > 0 ? min(_toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
+  };
+
+  // getting tag from 19.1.3.6 Object.prototype.toString()
+
+  var TAG = _wks('toStringTag');
+  // ES3 wrong here
+  var ARG = _cof(function () { return arguments; }()) == 'Arguments';
+
+  // fallback for IE11 Script Access Denied error
+  var tryGet = function (it, key) {
+    try {
+      return it[key];
+    } catch (e) { /* empty */ }
+  };
+
+  var _classof = function (it) {
+    var O, T, B;
+    return it === undefined ? 'Undefined' : it === null ? 'Null'
+      // @@toStringTag case
+      : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
+      // builtinTag case
+      : ARG ? _cof(O)
+      // ES3 arguments fallback
+      : (B = _cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
+  };
+
+  var builtinExec = RegExp.prototype.exec;
+
+   // `RegExpExec` abstract operation
+  // https://tc39.github.io/ecma262/#sec-regexpexec
+  var _regexpExecAbstract = function (R, S) {
+    var exec = R.exec;
+    if (typeof exec === 'function') {
+      var result = exec.call(R, S);
+      if (typeof result !== 'object') {
+        throw new TypeError('RegExp exec method returned something other than an Object or null');
+      }
+      return result;
+    }
+    if (_classof(R) !== 'RegExp') {
+      throw new TypeError('RegExp#exec called on incompatible receiver');
+    }
+    return builtinExec.call(R, S);
+  };
+
+  // 21.2.5.3 get RegExp.prototype.flags
+
+  var _flags = function () {
+    var that = _anObject(this);
+    var result = '';
+    if (that.global) result += 'g';
+    if (that.ignoreCase) result += 'i';
+    if (that.multiline) result += 'm';
+    if (that.unicode) result += 'u';
+    if (that.sticky) result += 'y';
+    return result;
+  };
+
+  var nativeExec = RegExp.prototype.exec;
+  // This always refers to the native implementation, because the
+  // String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
+  // which loads this file before patching the method.
+  var nativeReplace = String.prototype.replace;
+
+  var patchedExec = nativeExec;
+
+  var LAST_INDEX = 'lastIndex';
+
+  var UPDATES_LAST_INDEX_WRONG = (function () {
+    var re1 = /a/,
+        re2 = /b*/g;
+    nativeExec.call(re1, 'a');
+    nativeExec.call(re2, 'a');
+    return re1[LAST_INDEX] !== 0 || re2[LAST_INDEX] !== 0;
+  })();
+
+  // nonparticipating capturing group, copied from es5-shim's String#split patch.
+  var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;
+
+  var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED;
+
+  if (PATCH) {
+    patchedExec = function exec(str) {
+      var re = this;
+      var lastIndex, reCopy, match, i;
+
+      if (NPCG_INCLUDED) {
+        reCopy = new RegExp('^' + re.source + '$(?!\\s)', _flags.call(re));
+      }
+      if (UPDATES_LAST_INDEX_WRONG) lastIndex = re[LAST_INDEX];
+
+      match = nativeExec.call(re, str);
+
+      if (UPDATES_LAST_INDEX_WRONG && match) {
+        re[LAST_INDEX] = re.global ? match.index + match[0].length : lastIndex;
+      }
+      if (NPCG_INCLUDED && match && match.length > 1) {
+        // Fix browsers whose `exec` methods don't consistently return `undefined`
+        // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
+        // eslint-disable-next-line no-loop-func
+        nativeReplace.call(match[0], reCopy, function () {
+          for (i = 1; i < arguments.length - 2; i++) {
+            if (arguments[i] === undefined) match[i] = undefined;
+          }
+        });
+      }
+
+      return match;
+    };
+  }
+
+  var _regexpExec = patchedExec;
+
+  var _fails = function (exec) {
+    try {
+      return !!exec();
+    } catch (e) {
+      return true;
+    }
+  };
+
+  // Thank's IE8 for his funny defineProperty
+  var _descriptors = !_fails(function () {
+    return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
+  });
+
+  var document$1 = _global.document;
+  // typeof document.createElement is 'object' in old IE
+  var is = _isObject(document$1) && _isObject(document$1.createElement);
+  var _domCreate = function (it) {
+    return is ? document$1.createElement(it) : {};
+  };
+
+  var _ie8DomDefine = !_descriptors && !_fails(function () {
+    return Object.defineProperty(_domCreate('div'), 'a', { get: function () { return 7; } }).a != 7;
+  });
+
+  // 7.1.1 ToPrimitive(input [, PreferredType])
+
+  // instead of the ES6 spec version, we didn't implement @@toPrimitive case
+  // and the second argument - flag - preferred type is a string
+  var _toPrimitive = function (it, S) {
+    if (!_isObject(it)) return it;
+    var fn, val;
+    if (S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
+    if (typeof (fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) return val;
+    if (!S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
+    throw TypeError("Can't convert object to primitive value");
+  };
+
+  var dP = Object.defineProperty;
+
+  var f = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {
+    _anObject(O);
+    P = _toPrimitive(P, true);
+    _anObject(Attributes);
+    if (_ie8DomDefine) try {
+      return dP(O, P, Attributes);
+    } catch (e) { /* empty */ }
+    if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
+    if ('value' in Attributes) O[P] = Attributes.value;
+    return O;
+  };
+
+  var _objectDp = {
+  	f: f
+  };
+
+  var _propertyDesc = function (bitmap, value) {
+    return {
+      enumerable: !(bitmap & 1),
+      configurable: !(bitmap & 2),
+      writable: !(bitmap & 4),
+      value: value
+    };
+  };
+
+  var _hide = _descriptors ? function (object, key, value) {
+    return _objectDp.f(object, key, _propertyDesc(1, value));
+  } : function (object, key, value) {
+    object[key] = value;
+    return object;
+  };
+
+  var hasOwnProperty = {}.hasOwnProperty;
+  var _has = function (it, key) {
+    return hasOwnProperty.call(it, key);
+  };
+
+  var _redefine = createCommonjsModule(function (module) {
+  var SRC = _uid('src');
+  var TO_STRING = 'toString';
+  var $toString = Function[TO_STRING];
+  var TPL = ('' + $toString).split(TO_STRING);
+
+  _core.inspectSource = function (it) {
+    return $toString.call(it);
+  };
+
+  (module.exports = function (O, key, val, safe) {
+    var isFunction = typeof val == 'function';
+    if (isFunction) _has(val, 'name') || _hide(val, 'name', key);
+    if (O[key] === val) return;
+    if (isFunction) _has(val, SRC) || _hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
+    if (O === _global) {
+      O[key] = val;
+    } else if (!safe) {
+      delete O[key];
+      _hide(O, key, val);
+    } else if (O[key]) {
+      O[key] = val;
+    } else {
+      _hide(O, key, val);
+    }
+  // add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
+  })(Function.prototype, TO_STRING, function toString() {
+    return typeof this == 'function' && this[SRC] || $toString.call(this);
+  });
+  });
+
+  // optional / simple context binding
+
+  var _ctx = function (fn, that, length) {
+    _aFunction(fn);
+    if (that === undefined) return fn;
+    switch (length) {
+      case 1: return function (a) {
+        return fn.call(that, a);
+      };
+      case 2: return function (a, b) {
+        return fn.call(that, a, b);
+      };
+      case 3: return function (a, b, c) {
+        return fn.call(that, a, b, c);
+      };
+    }
+    return function (/* ...args */) {
+      return fn.apply(that, arguments);
+    };
+  };
+
+  var PROTOTYPE = 'prototype';
+
+  var $export = function (type, name, source) {
+    var IS_FORCED = type & $export.F;
+    var IS_GLOBAL = type & $export.G;
+    var IS_STATIC = type & $export.S;
+    var IS_PROTO = type & $export.P;
+    var IS_BIND = type & $export.B;
+    var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] || (_global[name] = {}) : (_global[name] || {})[PROTOTYPE];
+    var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
+    var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
+    var key, own, out, exp;
+    if (IS_GLOBAL) source = name;
+    for (key in source) {
+      // contains in native
+      own = !IS_FORCED && target && target[key] !== undefined;
+      // export native or passed
+      out = (own ? target : source)[key];
+      // bind timers to global for call from export context
+      exp = IS_BIND && own ? _ctx(out, _global) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
+      // extend global
+      if (target) _redefine(target, key, out, type & $export.U);
+      // export
+      if (exports[key] != out) _hide(exports, key, exp);
+      if (IS_PROTO && expProto[key] != out) expProto[key] = out;
+    }
+  };
+  _global.core = _core;
+  // type bitmap
+  $export.F = 1;   // forced
+  $export.G = 2;   // global
+  $export.S = 4;   // static
+  $export.P = 8;   // proto
+  $export.B = 16;  // bind
+  $export.W = 32;  // wrap
+  $export.U = 64;  // safe
+  $export.R = 128; // real proto method for `library`
+  var _export = $export;
+
+  _export({
+    target: 'RegExp',
+    proto: true,
+    forced: _regexpExec !== /./.exec
+  }, {
+    exec: _regexpExec
+  });
+
+  var SPECIES$1 = _wks('species');
+
+  var REPLACE_SUPPORTS_NAMED_GROUPS = !_fails(function () {
+    // #replace needs built-in support for named groups.
+    // #match works fine because it just return the exec results, even if it has
+    // a "grops" property.
+    var re = /./;
+    re.exec = function () {
+      var result = [];
+      result.groups = { a: '7' };
+      return result;
+    };
+    return ''.replace(re, '$<a>') !== '7';
+  });
+
+  var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = (function () {
+    // Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
+    var re = /(?:)/;
+    var originalExec = re.exec;
+    re.exec = function () { return originalExec.apply(this, arguments); };
+    var result = 'ab'.split(re);
+    return result.length === 2 && result[0] === 'a' && result[1] === 'b';
+  })();
+
+  var _fixReWks = function (KEY, length, exec) {
+    var SYMBOL = _wks(KEY);
+
+    var DELEGATES_TO_SYMBOL = !_fails(function () {
+      // String methods call symbol-named RegEp methods
+      var O = {};
+      O[SYMBOL] = function () { return 7; };
+      return ''[KEY](O) != 7;
+    });
+
+    var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL ? !_fails(function () {
+      // Symbol-named RegExp methods call .exec
+      var execCalled = false;
+      var re = /a/;
+      re.exec = function () { execCalled = true; return null; };
+      if (KEY === 'split') {
+        // RegExp[@@split] doesn't call the regex's exec method, but first creates
+        // a new one. We need to return the patched regex when creating the new one.
+        re.constructor = {};
+        re.constructor[SPECIES$1] = function () { return re; };
+      }
+      re[SYMBOL]('');
+      return !execCalled;
+    }) : undefined;
+
+    if (
+      !DELEGATES_TO_SYMBOL ||
+      !DELEGATES_TO_EXEC ||
+      (KEY === 'replace' && !REPLACE_SUPPORTS_NAMED_GROUPS) ||
+      (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)
+    ) {
+      var nativeRegExpMethod = /./[SYMBOL];
+      var fns = exec(
+        _defined,
+        SYMBOL,
+        ''[KEY],
+        function maybeCallNative(nativeMethod, regexp, str, arg2, forceStringMethod) {
+          if (regexp.exec === _regexpExec) {
+            if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
+              // The native String method already delegates to @@method (this
+              // polyfilled function), leasing to infinite recursion.
+              // We avoid it by directly calling the native @@method method.
+              return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
+            }
+            return { done: true, value: nativeMethod.call(str, regexp, arg2) };
+          }
+          return { done: false };
+        }
+      );
+      var strfn = fns[0];
+      var rxfn = fns[1];
+
+      _redefine(String.prototype, KEY, strfn);
+      _hide(RegExp.prototype, SYMBOL, length == 2
+        // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
+        // 21.2.5.11 RegExp.prototype[@@split](string, limit)
+        ? function (string, arg) { return rxfn.call(string, this, arg); }
+        // 21.2.5.6 RegExp.prototype[@@match](string)
+        // 21.2.5.9 RegExp.prototype[@@search](string)
+        : function (string) { return rxfn.call(string, this); }
+      );
+    }
+  };
+
+  var $min = Math.min;
+  var $push = [].push;
+  var $SPLIT = 'split';
+  var LENGTH = 'length';
+  var LAST_INDEX$1 = 'lastIndex';
+
+  // eslint-disable-next-line no-empty
+  var SUPPORTS_Y = !!(function () { try { return new RegExp('x', 'y'); } catch (e) {} })();
+
+  // @@split logic
+  _fixReWks('split', 2, function (defined, SPLIT, $split, maybeCallNative) {
+    var internalSplit = $split;
+    if (
+      'abbc'[$SPLIT](/(b)*/)[1] == 'c' ||
+      'test'[$SPLIT](/(?:)/, -1)[LENGTH] != 4 ||
+      'ab'[$SPLIT](/(?:ab)*/)[LENGTH] != 2 ||
+      '.'[$SPLIT](/(.?)(.?)/)[LENGTH] != 4 ||
+      '.'[$SPLIT](/()()/)[LENGTH] > 1 ||
+      ''[$SPLIT](/.?/)[LENGTH]
+    ) {
+      // based on es5-shim implementation, need to rework it
+      internalSplit = function (separator, limit) {
+        var string = String(this);
+        if (separator === undefined && limit === 0) return [];
+        // If `separator` is not a regex, use native split
+        if (!_isRegexp(separator)) return $split.call(string, separator, limit);
+        var output = [];
+        var flags = (separator.ignoreCase ? 'i' : '') +
+                    (separator.multiline ? 'm' : '') +
+                    (separator.unicode ? 'u' : '') +
+                    (separator.sticky ? 'y' : '');
+        var lastLastIndex = 0;
+        var splitLimit = limit === undefined ? 4294967295 : limit >>> 0;
+        // Make `global` and avoid `lastIndex` issues by working with a copy
+        var separatorCopy = new RegExp(separator.source, flags + 'g');
+        var match, lastIndex, lastLength;
+        while (match = _regexpExec.call(separatorCopy, string)) {
+          lastIndex = separatorCopy[LAST_INDEX$1];
+          if (lastIndex > lastLastIndex) {
+            output.push(string.slice(lastLastIndex, match.index));
+            if (match[LENGTH] > 1 && match.index < string[LENGTH]) $push.apply(output, match.slice(1));
+            lastLength = match[0][LENGTH];
+            lastLastIndex = lastIndex;
+            if (output[LENGTH] >= splitLimit) break;
+          }
+          if (separatorCopy[LAST_INDEX$1] === match.index) separatorCopy[LAST_INDEX$1]++; // Avoid an infinite loop
+        }
+        if (lastLastIndex === string[LENGTH]) {
+          if (lastLength || !separatorCopy.test('')) output.push('');
+        } else output.push(string.slice(lastLastIndex));
+        return output[LENGTH] > splitLimit ? output.slice(0, splitLimit) : output;
+      };
+    // Chakra, V8
+    } else if ('0'[$SPLIT](undefined, 0)[LENGTH]) {
+      internalSplit = function (separator, limit) {
+        return separator === undefined && limit === 0 ? [] : $split.call(this, separator, limit);
+      };
+    }
+
+    return [
+      // `String.prototype.split` method
+      // https://tc39.github.io/ecma262/#sec-string.prototype.split
+      function split(separator, limit) {
+        var O = defined(this);
+        var splitter = separator == undefined ? undefined : separator[SPLIT];
+        return splitter !== undefined
+          ? splitter.call(separator, O, limit)
+          : internalSplit.call(String(O), separator, limit);
+      },
+      // `RegExp.prototype[@@split]` method
+      // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split
+      //
+      // NOTE: This cannot be properly polyfilled in engines that don't support
+      // the 'y' flag.
+      function (regexp, limit) {
+        var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== $split);
+        if (res.done) return res.value;
+
+        var rx = _anObject(regexp);
+        var S = String(this);
+        var C = _speciesConstructor(rx, RegExp);
+
+        var unicodeMatching = rx.unicode;
+        var flags = (rx.ignoreCase ? 'i' : '') +
+                      (rx.multiline ? 'm' : '') +
+                      (rx.unicode ? 'u' : '') +
+                      (SUPPORTS_Y ? 'y' : 'g');
+
+        // ^(? + rx + ) is needed, in combination with some S slicing, to
+        // simulate the 'y' flag.
+        var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);
+        var lim = limit === undefined ? 0xffffffff : limit >>> 0;
+        if (lim === 0) return [];
+        if (S.length === 0) return _regexpExecAbstract(splitter, S) === null ? [S] : [];
+        var p = 0;
+        var q = 0;
+        var A = [];
+        while (q < S.length) {
+          splitter.lastIndex = SUPPORTS_Y ? q : 0;
+          var z = _regexpExecAbstract(splitter, SUPPORTS_Y ? S : S.slice(q));
+          var e;
+          if (
+            z === null ||
+            (e = $min(_toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p
+          ) {
+            q = _advanceStringIndex(S, q, unicodeMatching);
+          } else {
+            A.push(S.slice(p, q));
+            if (A.length === lim) return A;
+            for (var i = 1; i <= z.length - 1; i++) {
+              A.push(z[i]);
+              if (A.length === lim) return A;
+            }
+            q = p = e;
+          }
+        }
+        A.push(S.slice(p));
+        return A;
+      }
+    ];
+  });
+
+  // 22.1.3.31 Array.prototype[@@unscopables]
+  var UNSCOPABLES = _wks('unscopables');
+  var ArrayProto = Array.prototype;
+  if (ArrayProto[UNSCOPABLES] == undefined) _hide(ArrayProto, UNSCOPABLES, {});
+  var _addToUnscopables = function (key) {
+    ArrayProto[UNSCOPABLES][key] = true;
+  };
+
+  var _iterStep = function (done, value) {
+    return { value: value, done: !!done };
+  };
+
+  var _iterators = {};
+
+  // fallback for non-array-like ES3 and non-enumerable old V8 strings
+
+  // eslint-disable-next-line no-prototype-builtins
+  var _iobject = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
+    return _cof(it) == 'String' ? it.split('') : Object(it);
+  };
+
+  // to indexed object, toObject with fallback for non-array-like ES3 strings
+
+
+  var _toIobject = function (it) {
+    return _iobject(_defined(it));
+  };
+
+  var max = Math.max;
+  var min$1 = Math.min;
+  var _toAbsoluteIndex = function (index, length) {
+    index = _toInteger(index);
+    return index < 0 ? max(index + length, 0) : min$1(index, length);
+  };
+
+  // false -> Array#indexOf
+  // true  -> Array#includes
+
+
+
+  var _arrayIncludes = function (IS_INCLUDES) {
+    return function ($this, el, fromIndex) {
+      var O = _toIobject($this);
+      var length = _toLength(O.length);
+      var index = _toAbsoluteIndex(fromIndex, length);
+      var value;
+      // Array#includes uses SameValueZero equality algorithm
+      // eslint-disable-next-line no-self-compare
+      if (IS_INCLUDES && el != el) while (length > index) {
+        value = O[index++];
+        // eslint-disable-next-line no-self-compare
+        if (value != value) return true;
+      // Array#indexOf ignores holes, Array#includes - not
+      } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
+        if (O[index] === el) return IS_INCLUDES || index || 0;
+      } return !IS_INCLUDES && -1;
+    };
+  };
+
+  var shared = _shared('keys');
+
+  var _sharedKey = function (key) {
+    return shared[key] || (shared[key] = _uid(key));
+  };
+
+  var arrayIndexOf = _arrayIncludes(false);
+  var IE_PROTO = _sharedKey('IE_PROTO');
+
+  var _objectKeysInternal = function (object, names) {
+    var O = _toIobject(object);
+    var i = 0;
+    var result = [];
+    var key;
+    for (key in O) if (key != IE_PROTO) _has(O, key) && result.push(key);
+    // Don't enum bug & hidden keys
+    while (names.length > i) if (_has(O, key = names[i++])) {
+      ~arrayIndexOf(result, key) || result.push(key);
+    }
+    return result;
+  };
+
+  // IE 8- don't enum bug keys
+  var _enumBugKeys = (
+    'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
+  ).split(',');
+
+  // 19.1.2.14 / 15.2.3.14 Object.keys(O)
+
+
+
+  var _objectKeys = Object.keys || function keys(O) {
+    return _objectKeysInternal(O, _enumBugKeys);
+  };
+
+  var _objectDps = _descriptors ? Object.defineProperties : function defineProperties(O, Properties) {
+    _anObject(O);
+    var keys = _objectKeys(Properties);
+    var length = keys.length;
+    var i = 0;
+    var P;
+    while (length > i) _objectDp.f(O, P = keys[i++], Properties[P]);
+    return O;
+  };
+
+  var document$2 = _global.document;
+  var _html = document$2 && document$2.documentElement;
+
+  // 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
+
+
+
+  var IE_PROTO$1 = _sharedKey('IE_PROTO');
+  var Empty = function () { /* empty */ };
+  var PROTOTYPE$1 = 'prototype';
+
+  // Create object with fake `null` prototype: use iframe Object with cleared prototype
+  var createDict = function () {
+    // Thrash, waste and sodomy: IE GC bug
+    var iframe = _domCreate('iframe');
+    var i = _enumBugKeys.length;
+    var lt = '<';
+    var gt = '>';
+    var iframeDocument;
+    iframe.style.display = 'none';
+    _html.appendChild(iframe);
+    iframe.src = 'javascript:'; // eslint-disable-line no-script-url
+    // createDict = iframe.contentWindow.Object;
+    // html.removeChild(iframe);
+    iframeDocument = iframe.contentWindow.document;
+    iframeDocument.open();
+    iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
+    iframeDocument.close();
+    createDict = iframeDocument.F;
+    while (i--) delete createDict[PROTOTYPE$1][_enumBugKeys[i]];
+    return createDict();
+  };
+
+  var _objectCreate = Object.create || function create(O, Properties) {
+    var result;
+    if (O !== null) {
+      Empty[PROTOTYPE$1] = _anObject(O);
+      result = new Empty();
+      Empty[PROTOTYPE$1] = null;
+      // add "__proto__" for Object.getPrototypeOf polyfill
+      result[IE_PROTO$1] = O;
+    } else result = createDict();
+    return Properties === undefined ? result : _objectDps(result, Properties);
+  };
+
+  var def = _objectDp.f;
+
+  var TAG$1 = _wks('toStringTag');
+
+  var _setToStringTag = function (it, tag, stat) {
+    if (it && !_has(it = stat ? it : it.prototype, TAG$1)) def(it, TAG$1, { configurable: true, value: tag });
+  };
+
+  var IteratorPrototype = {};
+
+  // 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
+  _hide(IteratorPrototype, _wks('iterator'), function () { return this; });
+
+  var _iterCreate = function (Constructor, NAME, next) {
+    Constructor.prototype = _objectCreate(IteratorPrototype, { next: _propertyDesc(1, next) });
+    _setToStringTag(Constructor, NAME + ' Iterator');
+  };
+
+  // 7.1.13 ToObject(argument)
+
+  var _toObject = function (it) {
+    return Object(_defined(it));
+  };
+
+  // 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
+
+
+  var IE_PROTO$2 = _sharedKey('IE_PROTO');
+  var ObjectProto = Object.prototype;
+
+  var _objectGpo = Object.getPrototypeOf || function (O) {
+    O = _toObject(O);
+    if (_has(O, IE_PROTO$2)) return O[IE_PROTO$2];
+    if (typeof O.constructor == 'function' && O instanceof O.constructor) {
+      return O.constructor.prototype;
+    } return O instanceof Object ? ObjectProto : null;
+  };
+
+  var ITERATOR = _wks('iterator');
+  var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
+  var FF_ITERATOR = '@@iterator';
+  var KEYS = 'keys';
+  var VALUES = 'values';
+
+  var returnThis = function () { return this; };
+
+  var _iterDefine = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
+    _iterCreate(Constructor, NAME, next);
+    var getMethod = function (kind) {
+      if (!BUGGY && kind in proto) return proto[kind];
+      switch (kind) {
+        case KEYS: return function keys() { return new Constructor(this, kind); };
+        case VALUES: return function values() { return new Constructor(this, kind); };
+      } return function entries() { return new Constructor(this, kind); };
+    };
+    var TAG = NAME + ' Iterator';
+    var DEF_VALUES = DEFAULT == VALUES;
+    var VALUES_BUG = false;
+    var proto = Base.prototype;
+    var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
+    var $default = $native || getMethod(DEFAULT);
+    var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
+    var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
+    var methods, key, IteratorPrototype;
+    // Fix native
+    if ($anyNative) {
+      IteratorPrototype = _objectGpo($anyNative.call(new Base()));
+      if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
+        // Set @@toStringTag to native iterators
+        _setToStringTag(IteratorPrototype, TAG, true);
+        // fix for some old engines
+        if (!_library && typeof IteratorPrototype[ITERATOR] != 'function') _hide(IteratorPrototype, ITERATOR, returnThis);
+      }
+    }
+    // fix Array#{values, @@iterator}.name in V8 / FF
+    if (DEF_VALUES && $native && $native.name !== VALUES) {
+      VALUES_BUG = true;
+      $default = function values() { return $native.call(this); };
+    }
+    // Define iterator
+    if ((!_library || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
+      _hide(proto, ITERATOR, $default);
+    }
+    // Plug for library
+    _iterators[NAME] = $default;
+    _iterators[TAG] = returnThis;
+    if (DEFAULT) {
+      methods = {
+        values: DEF_VALUES ? $default : getMethod(VALUES),
+        keys: IS_SET ? $default : getMethod(KEYS),
+        entries: $entries
+      };
+      if (FORCED) for (key in methods) {
+        if (!(key in proto)) _redefine(proto, key, methods[key]);
+      } else _export(_export.P + _export.F * (BUGGY || VALUES_BUG), NAME, methods);
+    }
+    return methods;
+  };
+
+  // 22.1.3.4 Array.prototype.entries()
+  // 22.1.3.13 Array.prototype.keys()
+  // 22.1.3.29 Array.prototype.values()
+  // 22.1.3.30 Array.prototype[@@iterator]()
+  var es6_array_iterator = _iterDefine(Array, 'Array', function (iterated, kind) {
+    this._t = _toIobject(iterated); // target
+    this._i = 0;                   // next index
+    this._k = kind;                // kind
+  // 22.1.5.2.1 %ArrayIteratorPrototype%.next()
+  }, function () {
+    var O = this._t;
+    var kind = this._k;
+    var index = this._i++;
+    if (!O || index >= O.length) {
+      this._t = undefined;
+      return _iterStep(1);
+    }
+    if (kind == 'keys') return _iterStep(0, index);
+    if (kind == 'values') return _iterStep(0, O[index]);
+    return _iterStep(0, [index, O[index]]);
+  }, 'values');
+
+  // argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
+  _iterators.Arguments = _iterators.Array;
+
+  _addToUnscopables('keys');
+  _addToUnscopables('values');
+  _addToUnscopables('entries');
+
+  var ITERATOR$1 = _wks('iterator');
+  var TO_STRING_TAG = _wks('toStringTag');
+  var ArrayValues = _iterators.Array;
+
+  var DOMIterables = {
+    CSSRuleList: true, // TODO: Not spec compliant, should be false.
+    CSSStyleDeclaration: false,
+    CSSValueList: false,
+    ClientRectList: false,
+    DOMRectList: false,
+    DOMStringList: false,
+    DOMTokenList: true,
+    DataTransferItemList: false,
+    FileList: false,
+    HTMLAllCollection: false,
+    HTMLCollection: false,
+    HTMLFormElement: false,
+    HTMLSelectElement: false,
+    MediaList: true, // TODO: Not spec compliant, should be false.
+    MimeTypeArray: false,
+    NamedNodeMap: false,
+    NodeList: true,
+    PaintRequestList: false,
+    Plugin: false,
+    PluginArray: false,
+    SVGLengthList: false,
+    SVGNumberList: false,
+    SVGPathSegList: false,
+    SVGPointList: false,
+    SVGStringList: false,
+    SVGTransformList: false,
+    SourceBufferList: false,
+    StyleSheetList: true, // TODO: Not spec compliant, should be false.
+    TextTrackCueList: false,
+    TextTrackList: false,
+    TouchList: false
+  };
+
+  for (var collections = _objectKeys(DOMIterables), i = 0; i < collections.length; i++) {
+    var NAME = collections[i];
+    var explicit = DOMIterables[NAME];
+    var Collection = _global[NAME];
+    var proto = Collection && Collection.prototype;
+    var key;
+    if (proto) {
+      if (!proto[ITERATOR$1]) _hide(proto, ITERATOR$1, ArrayValues);
+      if (!proto[TO_STRING_TAG]) _hide(proto, TO_STRING_TAG, NAME);
+      _iterators[NAME] = ArrayValues;
+      if (explicit) for (key in es6_array_iterator) if (!proto[key]) _redefine(proto, key, es6_array_iterator[key], true);
+    }
+  }
+
+  /*
+  * required polyfills
+  */
+  // eslint-disable-next-line consistent-return
+  (function () {
+    if (typeof NodeList.prototype.forEach === 'function') {
+      return false;
+    }
+
+    NodeList.prototype.forEach = Array.prototype.forEach;
+  })();
+  /** IE9, IE10 and IE11 requires all of the following polyfills. **/
+  // import 'core-js/es6/symbol'
+  // import 'core-js/es6/object'
+  // import 'core-js/es6/function'
+  // import 'core-js/es6/parse-int'
+  // import 'core-js/es6/parse-float'
+  // import 'core-js/es6/number'
+  // import 'core-js/es6/math'
+  // import 'core-js/es6/string'
+  // import 'core-js/es6/date'
+  // import 'core-js/es6/array'
+  // import 'core-js/es6/regexp'
+  // import 'core-js/es6/map'
+  // import 'core-js/es6/weak-map'
+  // import 'core-js/es6/set'
+  // import 'core-js/es7/object'
+
+  /** IE10 and IE11 requires the following for the Reflect API. */
+  // import 'core-js/es6/reflect'
+
+  /** Evergreen browsers require these. **/
+  // Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
+  // import 'core-js/es7/reflect'
+  // CustomEvent() constructor functionality in IE9, IE10, IE11
+  // (function () {
+  //
+  //   if ( typeof window.CustomEvent === "function" ) return false
+  //
+  //   function CustomEvent ( event, params ) {
+  //     params = params || { bubbles: false, cancelable: false, detail: undefined }
+  //     var evt = document.createEvent( 'CustomEvent' )
+  //     evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail )
+  //     return evt
+  //   }
+  //
+  //   CustomEvent.prototype = window.Event.prototype
+  //
+  //   window.CustomEvent = CustomEvent
+  // })()
+
+  var f$1 = Object.getOwnPropertySymbols;
+
+  var _objectGops = {
+  	f: f$1
+  };
+
+  var f$2 = {}.propertyIsEnumerable;
+
+  var _objectPie = {
+  	f: f$2
+  };
+
+  // 19.1.2.1 Object.assign(target, source, ...)
+
+
+
+
+
+  var $assign = Object.assign;
+
+  // should work with symbols and should have deterministic property order (V8 bug)
+  var _objectAssign = !$assign || _fails(function () {
+    var A = {};
+    var B = {};
+    // eslint-disable-next-line no-undef
+    var S = Symbol();
+    var K = 'abcdefghijklmnopqrst';
+    A[S] = 7;
+    K.split('').forEach(function (k) { B[k] = k; });
+    return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
+  }) ? function assign(target, source) { // eslint-disable-line no-unused-vars
+    var T = _toObject(target);
+    var aLen = arguments.length;
+    var index = 1;
+    var getSymbols = _objectGops.f;
+    var isEnum = _objectPie.f;
+    while (aLen > index) {
+      var S = _iobject(arguments[index++]);
+      var keys = getSymbols ? _objectKeys(S).concat(getSymbols(S)) : _objectKeys(S);
+      var length = keys.length;
+      var j = 0;
+      var key;
+      while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
+    } return T;
+  } : $assign;
+
+  // 19.1.3.1 Object.assign(target, source)
+
+
+  _export(_export.S + _export.F, 'Object', { assign: _objectAssign });
+
+  var $at = _stringAt(true);
+
+  // 21.1.3.27 String.prototype[@@iterator]()
+  _iterDefine(String, 'String', function (iterated) {
+    this._t = String(iterated); // target
+    this._i = 0;                // next index
+  // 21.1.5.2.1 %StringIteratorPrototype%.next()
+  }, function () {
+    var O = this._t;
+    var index = this._i;
+    var point;
+    if (index >= O.length) return { value: undefined, done: true };
+    point = $at(O, index);
+    this._i += point.length;
+    return { value: point, done: false };
+  });
+
+  // call something on iterator step with safe closing on error
+
+  var _iterCall = function (iterator, fn, value, entries) {
+    try {
+      return entries ? fn(_anObject(value)[0], value[1]) : fn(value);
+    // 7.4.6 IteratorClose(iterator, completion)
+    } catch (e) {
+      var ret = iterator['return'];
+      if (ret !== undefined) _anObject(ret.call(iterator));
+      throw e;
+    }
+  };
+
+  // check on default Array iterator
+
+  var ITERATOR$2 = _wks('iterator');
+  var ArrayProto$1 = Array.prototype;
+
+  var _isArrayIter = function (it) {
+    return it !== undefined && (_iterators.Array === it || ArrayProto$1[ITERATOR$2] === it);
+  };
+
+  var _createProperty = function (object, index, value) {
+    if (index in object) _objectDp.f(object, index, _propertyDesc(0, value));
+    else object[index] = value;
+  };
+
+  var ITERATOR$3 = _wks('iterator');
+
+  var core_getIteratorMethod = _core.getIteratorMethod = function (it) {
+    if (it != undefined) return it[ITERATOR$3]
+      || it['@@iterator']
+      || _iterators[_classof(it)];
+  };
+
+  var ITERATOR$4 = _wks('iterator');
+  var SAFE_CLOSING = false;
+
+  try {
+    var riter = [7][ITERATOR$4]();
+    riter['return'] = function () { SAFE_CLOSING = true; };
+  } catch (e) { /* empty */ }
+
+  var _iterDetect = function (exec, skipClosing) {
+    if (!skipClosing && !SAFE_CLOSING) return false;
+    var safe = false;
+    try {
+      var arr = [7];
+      var iter = arr[ITERATOR$4]();
+      iter.next = function () { return { done: safe = true }; };
+      arr[ITERATOR$4] = function () { return iter; };
+      exec(arr);
+    } catch (e) { /* empty */ }
+    return safe;
+  };
+
+  _export(_export.S + _export.F * !_iterDetect(function (iter) { }), 'Array', {
+    // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)
+    from: function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
+      var O = _toObject(arrayLike);
+      var C = typeof this == 'function' ? this : Array;
+      var aLen = arguments.length;
+      var mapfn = aLen > 1 ? arguments[1] : undefined;
+      var mapping = mapfn !== undefined;
+      var index = 0;
+      var iterFn = core_getIteratorMethod(O);
+      var length, result, step, iterator;
+      if (mapping) mapfn = _ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);
+      // if object isn't iterable or it's array with default iterator - use simple case
+      if (iterFn != undefined && !(C == Array && _isArrayIter(iterFn))) {
+        for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
+          _createProperty(result, index, mapping ? _iterCall(iterator, mapfn, [step.value, index], true) : step.value);
+        }
+      } else {
+        length = _toLength(O.length);
+        for (result = new C(length); length > index; index++) {
+          _createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
+        }
+      }
+      result.length = index;
+      return result;
+    }
+  });
+
+  var max$1 = Math.max;
+  var min$2 = Math.min;
+  var floor$1 = Math.floor;
+  var SUBSTITUTION_SYMBOLS = /\$([$&`']|\d\d?|<[^>]*>)/g;
+  var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&`']|\d\d?)/g;
+
+  var maybeToString = function (it) {
+    return it === undefined ? it : String(it);
+  };
+
+  // @@replace logic
+  _fixReWks('replace', 2, function (defined, REPLACE, $replace, maybeCallNative) {
+    return [
+      // `String.prototype.replace` method
+      // https://tc39.github.io/ecma262/#sec-string.prototype.replace
+      function replace(searchValue, replaceValue) {
+        var O = defined(this);
+        var fn = searchValue == undefined ? undefined : searchValue[REPLACE];
+        return fn !== undefined
+          ? fn.call(searchValue, O, replaceValue)
+          : $replace.call(String(O), searchValue, replaceValue);
+      },
+      // `RegExp.prototype[@@replace]` method
+      // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace
+      function (regexp, replaceValue) {
+        var res = maybeCallNative($replace, regexp, this, replaceValue);
+        if (res.done) return res.value;
+
+        var rx = _anObject(regexp);
+        var S = String(this);
+        var functionalReplace = typeof replaceValue === 'function';
+        if (!functionalReplace) replaceValue = String(replaceValue);
+        var global = rx.global;
+        if (global) {
+          var fullUnicode = rx.unicode;
+          rx.lastIndex = 0;
+        }
+        var results = [];
+        while (true) {
+          var result = _regexpExecAbstract(rx, S);
+          if (result === null) break;
+          results.push(result);
+          if (!global) break;
+          var matchStr = String(result[0]);
+          if (matchStr === '') rx.lastIndex = _advanceStringIndex(S, _toLength(rx.lastIndex), fullUnicode);
+        }
+        var accumulatedResult = '';
+        var nextSourcePosition = 0;
+        for (var i = 0; i < results.length; i++) {
+          result = results[i];
+          var matched = String(result[0]);
+          var position = max$1(min$2(_toInteger(result.index), S.length), 0);
+          var captures = [];
+          // NOTE: This is equivalent to
+          //   captures = result.slice(1).map(maybeToString)
+          // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
+          // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
+          // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
+          for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
+          var namedCaptures = result.groups;
+          if (functionalReplace) {
+            var replacerArgs = [matched].concat(captures, position, S);
+            if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
+            var replacement = String(replaceValue.apply(undefined, replacerArgs));
+          } else {
+            replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
+          }
+          if (position >= nextSourcePosition) {
+            accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
+            nextSourcePosition = position + matched.length;
+          }
+        }
+        return accumulatedResult + S.slice(nextSourcePosition);
+      }
+    ];
+
+      // https://tc39.github.io/ecma262/#sec-getsubstitution
+    function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {
+      var tailPos = position + matched.length;
+      var m = captures.length;
+      var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
+      if (namedCaptures !== undefined) {
+        namedCaptures = _toObject(namedCaptures);
+        symbols = SUBSTITUTION_SYMBOLS;
+      }
+      return $replace.call(replacement, symbols, function (match, ch) {
+        var capture;
+        switch (ch.charAt(0)) {
+          case '$': return '$';
+          case '&': return matched;
+          case '`': return str.slice(0, position);
+          case "'": return str.slice(tailPos);
+          case '<':
+            capture = namedCaptures[ch.slice(1, -1)];
+            break;
+          default: // \d\d?
+            var n = +ch;
+            if (n === 0) return ch;
+            if (n > m) {
+              var f = floor$1(n / 10);
+              if (f === 0) return ch;
+              if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
+              return ch;
+            }
+            capture = captures[n - 1];
+        }
+        return capture === undefined ? '' : capture;
+      });
+    }
+  });
+
   function _defineProperties(target, props) {
     for (var i = 0; i < props.length; i++) {
       var descriptor = props[i];
@@ -100,7 +1376,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): ajax-load.js
+   * CoreUI (v2.1.4): ajax-load.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -112,7 +1388,7 @@
      * ------------------------------------------------------------------------
      */
     var NAME = 'ajaxLoad';
-    var VERSION = '2.0.18';
+    var VERSION = '2.1.4';
     var DATA_KEY = 'coreui.ajaxLoad';
     var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
     var ClassName = {
@@ -305,7 +1581,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): toggle-classes.js
+   * CoreUI (v2.1.4): toggle-classes.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -330,7 +1606,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): aside-menu.js
+   * CoreUI (v2.1.4): aside-menu.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -342,7 +1618,7 @@
      * ------------------------------------------------------------------------
      */
     var NAME = 'aside-menu';
-    var VERSION = '2.0.18';
+    var VERSION = '2.1.4';
     var DATA_KEY = 'coreui.aside-menu';
     var EVENT_KEY = "." + DATA_KEY;
     var DATA_API_KEY = '.data-api';
@@ -378,10 +1654,10 @@
 
       // Private
       _proto._addEventListeners = function _addEventListeners() {
-        $$$1(Selector.ASIDE_MENU_TOGGLER).on(Event.CLICK, function (event) {
+        $$$1(document).on(Event.CLICK, Selector.ASIDE_MENU_TOGGLER, function (event) {
           event.preventDefault();
           event.stopPropagation();
-          var toggle = event.currentTarget.dataset.toggle;
+          var toggle = event.currentTarget.dataset ? event.currentTarget.dataset.toggle : $$$1(event.currentTarget).data('toggle');
           toggleClasses(toggle, ShowClassNames);
         });
       }; // Static
@@ -437,240 +1713,132 @@
     return AsideMenu;
   }($);
 
-  /**
-   * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): sidebar.js
-   * Licensed under MIT (https://coreui.io/license)
-   * --------------------------------------------------------------------------
-   */
+  // 7.2.2 IsArray(argument)
 
-  var Sidebar = function ($$$1) {
-    /**
-     * ------------------------------------------------------------------------
-     * Constants
-     * ------------------------------------------------------------------------
-     */
-    var NAME = 'sidebar';
-    var VERSION = '2.0.18';
-    var DATA_KEY = 'coreui.sidebar';
-    var EVENT_KEY = "." + DATA_KEY;
-    var DATA_API_KEY = '.data-api';
-    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
-    var Default = {
-      transition: 400
-    };
-    var ClassName = {
-      ACTIVE: 'active',
-      BRAND_MINIMIZED: 'brand-minimized',
-      NAV_DROPDOWN_TOGGLE: 'nav-dropdown-toggle',
-      OPEN: 'open',
-      SIDEBAR_FIXED: 'sidebar-fixed',
-      SIDEBAR_MINIMIZED: 'sidebar-minimized',
-      SIDEBAR_OFF_CANVAS: 'sidebar-off-canvas'
-    };
-    var Event = {
-      CLICK: 'click',
-      DESTROY: 'destroy',
-      INIT: 'init',
-      LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY,
-      TOGGLE: 'toggle',
-      UPDATE: 'update'
-    };
-    var Selector = {
-      BODY: 'body',
-      BRAND_MINIMIZER: '.brand-minimizer',
-      NAV_DROPDOWN_TOGGLE: '.nav-dropdown-toggle',
-      NAV_DROPDOWN_ITEMS: '.nav-dropdown-items',
-      NAV_ITEM: '.nav-item',
-      NAV_LINK: '.nav-link',
-      NAVIGATION_CONTAINER: '.sidebar-nav',
-      NAVIGATION: '.sidebar-nav > .nav',
-      SIDEBAR: '.sidebar',
-      SIDEBAR_MINIMIZER: '.sidebar-minimizer',
-      SIDEBAR_TOGGLER: '.sidebar-toggler'
-    };
-    var ShowClassNames = ['sidebar-show', 'sidebar-sm-show', 'sidebar-md-show', 'sidebar-lg-show', 'sidebar-xl-show'];
-    /**
-     * ------------------------------------------------------------------------
-     * Class Definition
-     * ------------------------------------------------------------------------
-     */
+  var _isArray = Array.isArray || function isArray(arg) {
+    return _cof(arg) == 'Array';
+  };
 
-    var Sidebar =
-    /*#__PURE__*/
-    function () {
-      function Sidebar(element) {
-        this._element = element;
-        this.ps = null;
-        this.perfectScrollbar(Event.INIT);
-        this.setActiveLink();
+  var SPECIES$2 = _wks('species');
 
-        this._addEventListeners();
-      } // Getters
+  var _arraySpeciesConstructor = function (original) {
+    var C;
+    if (_isArray(original)) {
+      C = original.constructor;
+      // cross-realm fallback
+      if (typeof C == 'function' && (C === Array || _isArray(C.prototype))) C = undefined;
+      if (_isObject(C)) {
+        C = C[SPECIES$2];
+        if (C === null) C = undefined;
+      }
+    } return C === undefined ? Array : C;
+  };
+
+  // 9.4.2.3 ArraySpeciesCreate(originalArray, length)
 
 
-      var _proto = Sidebar.prototype;
+  var _arraySpeciesCreate = function (original, length) {
+    return new (_arraySpeciesConstructor(original))(length);
+  };
 
-      // Public
-      _proto.perfectScrollbar = function perfectScrollbar(event) {
-        var _this = this;
+  // 0 -> Array#forEach
+  // 1 -> Array#map
+  // 2 -> Array#filter
+  // 3 -> Array#some
+  // 4 -> Array#every
+  // 5 -> Array#find
+  // 6 -> Array#findIndex
 
-        if (typeof PerfectScrollbar !== 'undefined') {
-          if (event === Event.INIT && !document.body.classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
-            this.ps = this.makeScrollbar();
-          }
 
-          if (event === Event.DESTROY) {
-            this.destroyScrollbar();
-          }
 
-          if (event === Event.TOGGLE) {
-            if (document.body.classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
-              this.destroyScrollbar();
-            } else {
-              this.ps = this.makeScrollbar();
-            }
-          }
 
-          if (event === Event.UPDATE && !document.body.classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
-            // ToDo: Add smooth transition
-            setTimeout(function () {
-              _this.destroyScrollbar();
 
-              _this.ps = _this.makeScrollbar();
-            }, Default.transition);
-          }
+  var _arrayMethods = function (TYPE, $create) {
+    var IS_MAP = TYPE == 1;
+    var IS_FILTER = TYPE == 2;
+    var IS_SOME = TYPE == 3;
+    var IS_EVERY = TYPE == 4;
+    var IS_FIND_INDEX = TYPE == 6;
+    var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
+    var create = $create || _arraySpeciesCreate;
+    return function ($this, callbackfn, that) {
+      var O = _toObject($this);
+      var self = _iobject(O);
+      var f = _ctx(callbackfn, that, 3);
+      var length = _toLength(self.length);
+      var index = 0;
+      var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
+      var val, res;
+      for (;length > index; index++) if (NO_HOLES || index in self) {
+        val = self[index];
+        res = f(val, index, O);
+        if (TYPE) {
+          if (IS_MAP) result[index] = res;   // map
+          else if (res) switch (TYPE) {
+            case 3: return true;             // some
+            case 5: return val;              // find
+            case 6: return index;            // findIndex
+            case 2: result.push(val);        // filter
+          } else if (IS_EVERY) return false; // every
         }
-      };
-
-      _proto.makeScrollbar = function makeScrollbar(container) {
-        if (container === void 0) {
-          container = Selector.NAVIGATION_CONTAINER;
-        }
-
-        var ps = new PerfectScrollbar(document.querySelector(container), {
-          suppressScrollX: true
-        }); // ToDo: find real fix for ps rtl
-
-        ps.isRtl = false;
-        return ps;
-      };
-
-      _proto.destroyScrollbar = function destroyScrollbar() {
-        if (this.ps) {
-          this.ps.destroy();
-          this.ps = null;
-        }
-      };
-
-      _proto.setActiveLink = function setActiveLink() {
-        $$$1(Selector.NAVIGATION).find(Selector.NAV_LINK).each(function (key, value) {
-          var link = value;
-          var cUrl = String(window.location).split('?')[0];
-
-          if (cUrl.substr(cUrl.length - 1) === '#') {
-            cUrl = cUrl.slice(0, -1);
-          }
-
-          if ($$$1($$$1(link))[0].href === cUrl) {
-            $$$1(link).addClass(ClassName.ACTIVE).parents(Selector.NAV_DROPDOWN_ITEMS).add(link).each(function (key, value) {
-              link = value;
-              $$$1(link).parent().addClass(ClassName.OPEN);
-            });
-          }
-        });
-      }; // Private
-
-
-      _proto._addEventListeners = function _addEventListeners() {
-        var _this2 = this;
-
-        $$$1(Selector.BRAND_MINIMIZER).on(Event.CLICK, function (event) {
-          event.preventDefault();
-          event.stopPropagation();
-          $$$1(Selector.BODY).toggleClass(ClassName.BRAND_MINIMIZED);
-        });
-        $$$1(Selector.NAV_DROPDOWN_TOGGLE).on(Event.CLICK, function (event) {
-          event.preventDefault();
-          event.stopPropagation();
-          var dropdown = event.target;
-          $$$1(dropdown).parent().toggleClass(ClassName.OPEN);
-
-          _this2.perfectScrollbar(Event.UPDATE);
-        });
-        $$$1(Selector.SIDEBAR_MINIMIZER).on(Event.CLICK, function (event) {
-          event.preventDefault();
-          event.stopPropagation();
-          $$$1(Selector.BODY).toggleClass(ClassName.SIDEBAR_MINIMIZED);
-
-          _this2.perfectScrollbar(Event.TOGGLE);
-        });
-        $$$1(Selector.SIDEBAR_TOGGLER).on(Event.CLICK, function (event) {
-          event.preventDefault();
-          event.stopPropagation();
-          var toggle = event.currentTarget.dataset.toggle;
-          toggleClasses(toggle, ShowClassNames);
-        });
-        $$$1(Selector.NAVIGATION + " > " + Selector.NAV_ITEM + " " + Selector.NAV_LINK + ":not(" + Selector.NAV_DROPDOWN_TOGGLE + ")").on(Event.CLICK, function () {
-          document.body.classList.remove('sidebar-show');
-        });
-      }; // Static
-
-
-      Sidebar._jQueryInterface = function _jQueryInterface() {
-        return this.each(function () {
-          var $element = $$$1(this);
-          var data = $element.data(DATA_KEY);
-
-          if (!data) {
-            data = new Sidebar(this);
-            $element.data(DATA_KEY, data);
-          }
-        });
-      };
-
-      _createClass(Sidebar, null, [{
-        key: "VERSION",
-        get: function get() {
-          return VERSION;
-        }
-      }]);
-
-      return Sidebar;
-    }();
-    /**
-     * ------------------------------------------------------------------------
-     * Data Api implementation
-     * ------------------------------------------------------------------------
-     */
-
-
-    $$$1(window).on(Event.LOAD_DATA_API, function () {
-      var sidebar = $$$1(Selector.SIDEBAR);
-
-      Sidebar._jQueryInterface.call(sidebar);
-    });
-    /**
-     * ------------------------------------------------------------------------
-     * jQuery
-     * ------------------------------------------------------------------------
-     */
-
-    $$$1.fn[NAME] = Sidebar._jQueryInterface;
-    $$$1.fn[NAME].Constructor = Sidebar;
-
-    $$$1.fn[NAME].noConflict = function () {
-      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
-      return Sidebar._jQueryInterface;
+      }
+      return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
     };
+  };
 
-    return Sidebar;
-  }($);
+  // 22.1.3.8 Array.prototype.find(predicate, thisArg = undefined)
+
+  var $find = _arrayMethods(5);
+  var KEY = 'find';
+  var forced = true;
+  // Shouldn't skip holes
+  if (KEY in []) Array(1)[KEY](function () { forced = false; });
+  _export(_export.P + _export.F * forced, 'Array', {
+    find: function find(callbackfn /* , that = undefined */) {
+      return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+    }
+  });
+  _addToUnscopables(KEY);
+
+  // @@match logic
+  _fixReWks('match', 1, function (defined, MATCH, $match, maybeCallNative) {
+    return [
+      // `String.prototype.match` method
+      // https://tc39.github.io/ecma262/#sec-string.prototype.match
+      function match(regexp) {
+        var O = defined(this);
+        var fn = regexp == undefined ? undefined : regexp[MATCH];
+        return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
+      },
+      // `RegExp.prototype[@@match]` method
+      // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match
+      function (regexp) {
+        var res = maybeCallNative($match, regexp, this);
+        if (res.done) return res.value;
+        var rx = _anObject(regexp);
+        var S = String(this);
+        if (!rx.global) return _regexpExecAbstract(rx, S);
+        var fullUnicode = rx.unicode;
+        rx.lastIndex = 0;
+        var A = [];
+        var n = 0;
+        var result;
+        while ((result = _regexpExecAbstract(rx, S)) !== null) {
+          var matchStr = String(result[0]);
+          A[n] = matchStr;
+          if (matchStr === '') rx.lastIndex = _advanceStringIndex(S, _toLength(rx.lastIndex), fullUnicode);
+          n++;
+        }
+        return n === 0 ? null : A;
+      }
+    ];
+  });
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI Utilities (v2.0.18): get-style.js
+   * CoreUI Utilities (v2.1.4): get-css-custom-properties.js
    * Licensed under MIT (https://coreui.io/license)
+   * @returns {string} css custom property name
    * --------------------------------------------------------------------------
    */
   var getCssCustomProperties = function getCssCustomProperties() {
@@ -736,7 +1904,307 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI Utilities (v2.0.18): hex-to-rgb.js
+   * CoreUI (v2.1.4): sidebar.js
+   * Licensed under MIT (https://coreui.io/license)
+   * --------------------------------------------------------------------------
+   */
+
+  var Sidebar = function ($$$1) {
+    /**
+     * ------------------------------------------------------------------------
+     * Constants
+     * ------------------------------------------------------------------------
+     */
+    var NAME = 'sidebar';
+    var VERSION = '2.1.4';
+    var DATA_KEY = 'coreui.sidebar';
+    var EVENT_KEY = "." + DATA_KEY;
+    var DATA_API_KEY = '.data-api';
+    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+    var Default = {
+      transition: 400
+    };
+    var ClassName = {
+      ACTIVE: 'active',
+      BRAND_MINIMIZED: 'brand-minimized',
+      NAV_DROPDOWN_TOGGLE: 'nav-dropdown-toggle',
+      OPEN: 'open',
+      SIDEBAR_FIXED: 'sidebar-fixed',
+      SIDEBAR_MINIMIZED: 'sidebar-minimized',
+      SIDEBAR_OFF_CANVAS: 'sidebar-off-canvas'
+    };
+    var Event = {
+      CLICK: 'click',
+      DESTROY: 'destroy',
+      INIT: 'init',
+      LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY,
+      TOGGLE: 'toggle',
+      UPDATE: 'update'
+    };
+    var Selector = {
+      BODY: 'body',
+      BRAND_MINIMIZER: '.brand-minimizer',
+      NAV_DROPDOWN_TOGGLE: '.nav-dropdown-toggle',
+      NAV_DROPDOWN_ITEMS: '.nav-dropdown-items',
+      NAV_ITEM: '.nav-item',
+      NAV_LINK: '.nav-link',
+      NAV_LINK_QUERIED: '.nav-link-queried',
+      NAVIGATION_CONTAINER: '.sidebar-nav',
+      NAVIGATION: '.sidebar-nav > .nav',
+      SIDEBAR: '.sidebar',
+      SIDEBAR_MINIMIZER: '.sidebar-minimizer',
+      SIDEBAR_TOGGLER: '.sidebar-toggler'
+    };
+    var ShowClassNames = ['sidebar-show', 'sidebar-sm-show', 'sidebar-md-show', 'sidebar-lg-show', 'sidebar-xl-show'];
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+    var Sidebar =
+    /*#__PURE__*/
+    function () {
+      function Sidebar(element) {
+        this._element = element;
+        this.mobile = false;
+        this.ps = null;
+        this.perfectScrollbar(Event.INIT);
+        this.setActiveLink();
+        this._breakpointTest = this._breakpointTest.bind(this);
+        this._clickOutListener = this._clickOutListener.bind(this);
+
+        this._addEventListeners();
+
+        this._addMediaQuery();
+      } // Getters
+
+
+      var _proto = Sidebar.prototype;
+
+      // Public
+      _proto.perfectScrollbar = function perfectScrollbar(event) {
+        var _this = this;
+
+        if (typeof PerfectScrollbar !== 'undefined') {
+          var classList = document.body.classList;
+
+          if (event === Event.INIT && !classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
+            this.ps = this.makeScrollbar();
+          }
+
+          if (event === Event.DESTROY) {
+            this.destroyScrollbar();
+          }
+
+          if (event === Event.TOGGLE) {
+            if (classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
+              this.destroyScrollbar();
+            } else {
+              this.destroyScrollbar();
+              this.ps = this.makeScrollbar();
+            }
+          }
+
+          if (event === Event.UPDATE && !classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
+            // ToDo: Add smooth transition
+            setTimeout(function () {
+              _this.destroyScrollbar();
+
+              _this.ps = _this.makeScrollbar();
+            }, Default.transition);
+          }
+        }
+      };
+
+      _proto.makeScrollbar = function makeScrollbar(container) {
+        if (container === void 0) {
+          container = Selector.NAVIGATION_CONTAINER;
+        }
+
+        var ps = new PerfectScrollbar(document.querySelector(container), {
+          suppressScrollX: true
+        }); // ToDo: find real fix for ps rtl
+
+        ps.isRtl = false;
+        return ps;
+      };
+
+      _proto.destroyScrollbar = function destroyScrollbar() {
+        if (this.ps) {
+          this.ps.destroy();
+          this.ps = null;
+        }
+      };
+
+      _proto.setActiveLink = function setActiveLink() {
+        $$$1(Selector.NAVIGATION).find(Selector.NAV_LINK).each(function (key, value) {
+          var link = value;
+          var cUrl;
+
+          if (link.classList.contains(Selector.NAV_LINK_QUERIED)) {
+            cUrl = String(window.location);
+          } else {
+            cUrl = String(window.location).split('?')[0];
+          }
+
+          if (cUrl.substr(cUrl.length - 1) === '#') {
+            cUrl = cUrl.slice(0, -1);
+          }
+
+          if ($$$1($$$1(link))[0].href === cUrl) {
+            $$$1(link).addClass(ClassName.ACTIVE).parents(Selector.NAV_DROPDOWN_ITEMS).add(link).each(function (key, value) {
+              link = value;
+              $$$1(link).parent().addClass(ClassName.OPEN);
+            });
+          }
+        });
+      }; // Private
+
+
+      _proto._addMediaQuery = function _addMediaQuery() {
+        var sm = getStyle('--breakpoint-sm');
+
+        if (!sm) {
+          return;
+        }
+
+        var smVal = parseInt(sm, 10) - 1;
+        var mediaQueryList = window.matchMedia("(max-width: " + smVal + "px)");
+
+        this._breakpointTest(mediaQueryList);
+
+        mediaQueryList.addListener(this._breakpointTest);
+      };
+
+      _proto._breakpointTest = function _breakpointTest(e) {
+        this.mobile = Boolean(e.matches);
+
+        this._toggleClickOut();
+      };
+
+      _proto._clickOutListener = function _clickOutListener(event) {
+        if (!this._element.contains(event.target)) {
+          // or use: event.target.closest(Selector.SIDEBAR) === null
+          event.preventDefault();
+          event.stopPropagation();
+
+          this._removeClickOut();
+
+          document.body.classList.remove('sidebar-show');
+        }
+      };
+
+      _proto._addClickOut = function _addClickOut() {
+        document.addEventListener(Event.CLICK, this._clickOutListener, true);
+      };
+
+      _proto._removeClickOut = function _removeClickOut() {
+        document.removeEventListener(Event.CLICK, this._clickOutListener, true);
+      };
+
+      _proto._toggleClickOut = function _toggleClickOut() {
+        if (this.mobile && document.body.classList.contains('sidebar-show')) {
+          document.body.classList.remove('aside-menu-show');
+
+          this._addClickOut();
+        } else {
+          this._removeClickOut();
+        }
+      };
+
+      _proto._addEventListeners = function _addEventListeners() {
+        var _this2 = this;
+
+        $$$1(document).on(Event.CLICK, Selector.BRAND_MINIMIZER, function (event) {
+          event.preventDefault();
+          event.stopPropagation();
+          $$$1(Selector.BODY).toggleClass(ClassName.BRAND_MINIMIZED);
+        });
+        $$$1(document).on(Event.CLICK, Selector.NAV_DROPDOWN_TOGGLE, function (event) {
+          event.preventDefault();
+          event.stopPropagation();
+          var dropdown = event.target;
+          $$$1(dropdown).parent().toggleClass(ClassName.OPEN);
+
+          _this2.perfectScrollbar(Event.UPDATE);
+        });
+        $$$1(document).on(Event.CLICK, Selector.SIDEBAR_MINIMIZER, function (event) {
+          event.preventDefault();
+          event.stopPropagation();
+          $$$1(Selector.BODY).toggleClass(ClassName.SIDEBAR_MINIMIZED);
+
+          _this2.perfectScrollbar(Event.TOGGLE);
+        });
+        $$$1(document).on(Event.CLICK, Selector.SIDEBAR_TOGGLER, function (event) {
+          event.preventDefault();
+          event.stopPropagation();
+          var toggle = event.currentTarget.dataset ? event.currentTarget.dataset.toggle : $$$1(event.currentTarget).data('toggle');
+          toggleClasses(toggle, ShowClassNames);
+
+          _this2._toggleClickOut();
+        });
+        $$$1(Selector.NAVIGATION + " > " + Selector.NAV_ITEM + " " + Selector.NAV_LINK + ":not(" + Selector.NAV_DROPDOWN_TOGGLE + ")").on(Event.CLICK, function () {
+          _this2._removeClickOut();
+
+          document.body.classList.remove('sidebar-show');
+        });
+      }; // Static
+
+
+      Sidebar._jQueryInterface = function _jQueryInterface() {
+        return this.each(function () {
+          var $element = $$$1(this);
+          var data = $element.data(DATA_KEY);
+
+          if (!data) {
+            data = new Sidebar(this);
+            $element.data(DATA_KEY, data);
+          }
+        });
+      };
+
+      _createClass(Sidebar, null, [{
+        key: "VERSION",
+        get: function get() {
+          return VERSION;
+        }
+      }]);
+
+      return Sidebar;
+    }();
+    /**
+     * ------------------------------------------------------------------------
+     * Data Api implementation
+     * ------------------------------------------------------------------------
+     */
+
+
+    $$$1(window).on(Event.LOAD_DATA_API, function () {
+      var sidebar = $$$1(Selector.SIDEBAR);
+
+      Sidebar._jQueryInterface.call(sidebar);
+    });
+    /**
+     * ------------------------------------------------------------------------
+     * jQuery
+     * ------------------------------------------------------------------------
+     */
+
+    $$$1.fn[NAME] = Sidebar._jQueryInterface;
+    $$$1.fn[NAME].Constructor = Sidebar;
+
+    $$$1.fn[NAME].noConflict = function () {
+      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+      return Sidebar._jQueryInterface;
+    };
+
+    return Sidebar;
+  }($);
+
+  /**
+   * --------------------------------------------------------------------------
+   * CoreUI Utilities (v2.1.4): hex-to-rgb.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -772,7 +2240,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI Utilities (v2.0.18): hex-to-rgba.js
+   * CoreUI Utilities (v2.1.4): hex-to-rgba.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -810,9 +2278,36 @@
     return "rgba(" + r + ", " + g + ", " + b + ", " + opacity / 100 + ")";
   };
 
+  // 21.2.5.3 get RegExp.prototype.flags()
+  if (_descriptors && /./g.flags != 'g') _objectDp.f(RegExp.prototype, 'flags', {
+    configurable: true,
+    get: _flags
+  });
+
+  var TO_STRING = 'toString';
+  var $toString = /./[TO_STRING];
+
+  var define = function (fn) {
+    _redefine(RegExp.prototype, TO_STRING, fn, true);
+  };
+
+  // 21.2.5.14 RegExp.prototype.toString()
+  if (_fails(function () { return $toString.call({ source: 'a', flags: 'b' }) != '/a/b'; })) {
+    define(function toString() {
+      var R = _anObject(this);
+      return '/'.concat(R.source, '/',
+        'flags' in R ? R.flags : !_descriptors && R instanceof RegExp ? _flags.call(R) : undefined);
+    });
+  // FF44- RegExp#toString has a wrong name
+  } else if ($toString.name != TO_STRING) {
+    define(function toString() {
+      return $toString.call(this);
+    });
+  }
+
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): rgb-to-hex.js
+   * CoreUI (v2.1.4): rgb-to-hex.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -841,7 +2336,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): index.js
+   * CoreUI (v2.1.4): index.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
diff --git a/public/js/coreui.min.js b/public/js/coreui.min.js
index c8a6321673a9..3817e663da9b 100644
--- a/public/js/coreui.min.js
+++ b/public/js/coreui.min.js
@@ -69,7 +69,7 @@
 /***/ (function(module, exports, __webpack_require__) {
 
 /*!
-  * CoreUI v2.0.18 (https://coreui.io)
+  * CoreUI v2.1.4 (https://coreui.io)
   * Copyright 2018 Łukasz Holeczek
   * Licensed under MIT (https://coreui.io)
   */
@@ -82,6 +82,1282 @@
   $ = $ && $.hasOwnProperty('default') ? $['default'] : $;
   PerfectScrollbar = PerfectScrollbar && PerfectScrollbar.hasOwnProperty('default') ? PerfectScrollbar['default'] : PerfectScrollbar;
 
+  var _isObject = function (it) {
+    return typeof it === 'object' ? it !== null : typeof it === 'function';
+  };
+
+  var toString = {}.toString;
+
+  var _cof = function (it) {
+    return toString.call(it).slice(8, -1);
+  };
+
+  function createCommonjsModule(fn, module) {
+  	return module = { exports: {} }, fn(module, module.exports), module.exports;
+  }
+
+  var _core = createCommonjsModule(function (module) {
+  var core = module.exports = { version: '2.6.0' };
+  if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
+  });
+  var _core_1 = _core.version;
+
+  var _global = createCommonjsModule(function (module) {
+  // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
+  var global = module.exports = typeof window != 'undefined' && window.Math == Math
+    ? window : typeof self != 'undefined' && self.Math == Math ? self
+    // eslint-disable-next-line no-new-func
+    : Function('return this')();
+  if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
+  });
+
+  var _library = false;
+
+  var _shared = createCommonjsModule(function (module) {
+  var SHARED = '__core-js_shared__';
+  var store = _global[SHARED] || (_global[SHARED] = {});
+
+  (module.exports = function (key, value) {
+    return store[key] || (store[key] = value !== undefined ? value : {});
+  })('versions', []).push({
+    version: _core.version,
+    mode: _library ? 'pure' : 'global',
+    copyright: '© 2018 Denis Pushkarev (zloirock.ru)'
+  });
+  });
+
+  var id = 0;
+  var px = Math.random();
+  var _uid = function (key) {
+    return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
+  };
+
+  var _wks = createCommonjsModule(function (module) {
+  var store = _shared('wks');
+
+  var Symbol = _global.Symbol;
+  var USE_SYMBOL = typeof Symbol == 'function';
+
+  var $exports = module.exports = function (name) {
+    return store[name] || (store[name] =
+      USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : _uid)('Symbol.' + name));
+  };
+
+  $exports.store = store;
+  });
+
+  // 7.2.8 IsRegExp(argument)
+
+
+  var MATCH = _wks('match');
+  var _isRegexp = function (it) {
+    var isRegExp;
+    return _isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : _cof(it) == 'RegExp');
+  };
+
+  var _anObject = function (it) {
+    if (!_isObject(it)) throw TypeError(it + ' is not an object!');
+    return it;
+  };
+
+  var _aFunction = function (it) {
+    if (typeof it != 'function') throw TypeError(it + ' is not a function!');
+    return it;
+  };
+
+  // 7.3.20 SpeciesConstructor(O, defaultConstructor)
+
+
+  var SPECIES = _wks('species');
+  var _speciesConstructor = function (O, D) {
+    var C = _anObject(O).constructor;
+    var S;
+    return C === undefined || (S = _anObject(C)[SPECIES]) == undefined ? D : _aFunction(S);
+  };
+
+  // 7.1.4 ToInteger
+  var ceil = Math.ceil;
+  var floor = Math.floor;
+  var _toInteger = function (it) {
+    return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
+  };
+
+  // 7.2.1 RequireObjectCoercible(argument)
+  var _defined = function (it) {
+    if (it == undefined) throw TypeError("Can't call method on  " + it);
+    return it;
+  };
+
+  // true  -> String#at
+  // false -> String#codePointAt
+  var _stringAt = function (TO_STRING) {
+    return function (that, pos) {
+      var s = String(_defined(that));
+      var i = _toInteger(pos);
+      var l = s.length;
+      var a, b;
+      if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
+      a = s.charCodeAt(i);
+      return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+        ? TO_STRING ? s.charAt(i) : a
+        : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+    };
+  };
+
+  var at = _stringAt(true);
+
+   // `AdvanceStringIndex` abstract operation
+  // https://tc39.github.io/ecma262/#sec-advancestringindex
+  var _advanceStringIndex = function (S, index, unicode) {
+    return index + (unicode ? at(S, index).length : 1);
+  };
+
+  // 7.1.15 ToLength
+
+  var min = Math.min;
+  var _toLength = function (it) {
+    return it > 0 ? min(_toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
+  };
+
+  // getting tag from 19.1.3.6 Object.prototype.toString()
+
+  var TAG = _wks('toStringTag');
+  // ES3 wrong here
+  var ARG = _cof(function () { return arguments; }()) == 'Arguments';
+
+  // fallback for IE11 Script Access Denied error
+  var tryGet = function (it, key) {
+    try {
+      return it[key];
+    } catch (e) { /* empty */ }
+  };
+
+  var _classof = function (it) {
+    var O, T, B;
+    return it === undefined ? 'Undefined' : it === null ? 'Null'
+      // @@toStringTag case
+      : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
+      // builtinTag case
+      : ARG ? _cof(O)
+      // ES3 arguments fallback
+      : (B = _cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
+  };
+
+  var builtinExec = RegExp.prototype.exec;
+
+   // `RegExpExec` abstract operation
+  // https://tc39.github.io/ecma262/#sec-regexpexec
+  var _regexpExecAbstract = function (R, S) {
+    var exec = R.exec;
+    if (typeof exec === 'function') {
+      var result = exec.call(R, S);
+      if (typeof result !== 'object') {
+        throw new TypeError('RegExp exec method returned something other than an Object or null');
+      }
+      return result;
+    }
+    if (_classof(R) !== 'RegExp') {
+      throw new TypeError('RegExp#exec called on incompatible receiver');
+    }
+    return builtinExec.call(R, S);
+  };
+
+  // 21.2.5.3 get RegExp.prototype.flags
+
+  var _flags = function () {
+    var that = _anObject(this);
+    var result = '';
+    if (that.global) result += 'g';
+    if (that.ignoreCase) result += 'i';
+    if (that.multiline) result += 'm';
+    if (that.unicode) result += 'u';
+    if (that.sticky) result += 'y';
+    return result;
+  };
+
+  var nativeExec = RegExp.prototype.exec;
+  // This always refers to the native implementation, because the
+  // String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
+  // which loads this file before patching the method.
+  var nativeReplace = String.prototype.replace;
+
+  var patchedExec = nativeExec;
+
+  var LAST_INDEX = 'lastIndex';
+
+  var UPDATES_LAST_INDEX_WRONG = (function () {
+    var re1 = /a/,
+        re2 = /b*/g;
+    nativeExec.call(re1, 'a');
+    nativeExec.call(re2, 'a');
+    return re1[LAST_INDEX] !== 0 || re2[LAST_INDEX] !== 0;
+  })();
+
+  // nonparticipating capturing group, copied from es5-shim's String#split patch.
+  var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;
+
+  var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED;
+
+  if (PATCH) {
+    patchedExec = function exec(str) {
+      var re = this;
+      var lastIndex, reCopy, match, i;
+
+      if (NPCG_INCLUDED) {
+        reCopy = new RegExp('^' + re.source + '$(?!\\s)', _flags.call(re));
+      }
+      if (UPDATES_LAST_INDEX_WRONG) lastIndex = re[LAST_INDEX];
+
+      match = nativeExec.call(re, str);
+
+      if (UPDATES_LAST_INDEX_WRONG && match) {
+        re[LAST_INDEX] = re.global ? match.index + match[0].length : lastIndex;
+      }
+      if (NPCG_INCLUDED && match && match.length > 1) {
+        // Fix browsers whose `exec` methods don't consistently return `undefined`
+        // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
+        // eslint-disable-next-line no-loop-func
+        nativeReplace.call(match[0], reCopy, function () {
+          for (i = 1; i < arguments.length - 2; i++) {
+            if (arguments[i] === undefined) match[i] = undefined;
+          }
+        });
+      }
+
+      return match;
+    };
+  }
+
+  var _regexpExec = patchedExec;
+
+  var _fails = function (exec) {
+    try {
+      return !!exec();
+    } catch (e) {
+      return true;
+    }
+  };
+
+  // Thank's IE8 for his funny defineProperty
+  var _descriptors = !_fails(function () {
+    return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
+  });
+
+  var document$1 = _global.document;
+  // typeof document.createElement is 'object' in old IE
+  var is = _isObject(document$1) && _isObject(document$1.createElement);
+  var _domCreate = function (it) {
+    return is ? document$1.createElement(it) : {};
+  };
+
+  var _ie8DomDefine = !_descriptors && !_fails(function () {
+    return Object.defineProperty(_domCreate('div'), 'a', { get: function () { return 7; } }).a != 7;
+  });
+
+  // 7.1.1 ToPrimitive(input [, PreferredType])
+
+  // instead of the ES6 spec version, we didn't implement @@toPrimitive case
+  // and the second argument - flag - preferred type is a string
+  var _toPrimitive = function (it, S) {
+    if (!_isObject(it)) return it;
+    var fn, val;
+    if (S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
+    if (typeof (fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) return val;
+    if (!S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
+    throw TypeError("Can't convert object to primitive value");
+  };
+
+  var dP = Object.defineProperty;
+
+  var f = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {
+    _anObject(O);
+    P = _toPrimitive(P, true);
+    _anObject(Attributes);
+    if (_ie8DomDefine) try {
+      return dP(O, P, Attributes);
+    } catch (e) { /* empty */ }
+    if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
+    if ('value' in Attributes) O[P] = Attributes.value;
+    return O;
+  };
+
+  var _objectDp = {
+  	f: f
+  };
+
+  var _propertyDesc = function (bitmap, value) {
+    return {
+      enumerable: !(bitmap & 1),
+      configurable: !(bitmap & 2),
+      writable: !(bitmap & 4),
+      value: value
+    };
+  };
+
+  var _hide = _descriptors ? function (object, key, value) {
+    return _objectDp.f(object, key, _propertyDesc(1, value));
+  } : function (object, key, value) {
+    object[key] = value;
+    return object;
+  };
+
+  var hasOwnProperty = {}.hasOwnProperty;
+  var _has = function (it, key) {
+    return hasOwnProperty.call(it, key);
+  };
+
+  var _redefine = createCommonjsModule(function (module) {
+  var SRC = _uid('src');
+  var TO_STRING = 'toString';
+  var $toString = Function[TO_STRING];
+  var TPL = ('' + $toString).split(TO_STRING);
+
+  _core.inspectSource = function (it) {
+    return $toString.call(it);
+  };
+
+  (module.exports = function (O, key, val, safe) {
+    var isFunction = typeof val == 'function';
+    if (isFunction) _has(val, 'name') || _hide(val, 'name', key);
+    if (O[key] === val) return;
+    if (isFunction) _has(val, SRC) || _hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
+    if (O === _global) {
+      O[key] = val;
+    } else if (!safe) {
+      delete O[key];
+      _hide(O, key, val);
+    } else if (O[key]) {
+      O[key] = val;
+    } else {
+      _hide(O, key, val);
+    }
+  // add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
+  })(Function.prototype, TO_STRING, function toString() {
+    return typeof this == 'function' && this[SRC] || $toString.call(this);
+  });
+  });
+
+  // optional / simple context binding
+
+  var _ctx = function (fn, that, length) {
+    _aFunction(fn);
+    if (that === undefined) return fn;
+    switch (length) {
+      case 1: return function (a) {
+        return fn.call(that, a);
+      };
+      case 2: return function (a, b) {
+        return fn.call(that, a, b);
+      };
+      case 3: return function (a, b, c) {
+        return fn.call(that, a, b, c);
+      };
+    }
+    return function (/* ...args */) {
+      return fn.apply(that, arguments);
+    };
+  };
+
+  var PROTOTYPE = 'prototype';
+
+  var $export = function (type, name, source) {
+    var IS_FORCED = type & $export.F;
+    var IS_GLOBAL = type & $export.G;
+    var IS_STATIC = type & $export.S;
+    var IS_PROTO = type & $export.P;
+    var IS_BIND = type & $export.B;
+    var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] || (_global[name] = {}) : (_global[name] || {})[PROTOTYPE];
+    var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
+    var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
+    var key, own, out, exp;
+    if (IS_GLOBAL) source = name;
+    for (key in source) {
+      // contains in native
+      own = !IS_FORCED && target && target[key] !== undefined;
+      // export native or passed
+      out = (own ? target : source)[key];
+      // bind timers to global for call from export context
+      exp = IS_BIND && own ? _ctx(out, _global) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
+      // extend global
+      if (target) _redefine(target, key, out, type & $export.U);
+      // export
+      if (exports[key] != out) _hide(exports, key, exp);
+      if (IS_PROTO && expProto[key] != out) expProto[key] = out;
+    }
+  };
+  _global.core = _core;
+  // type bitmap
+  $export.F = 1;   // forced
+  $export.G = 2;   // global
+  $export.S = 4;   // static
+  $export.P = 8;   // proto
+  $export.B = 16;  // bind
+  $export.W = 32;  // wrap
+  $export.U = 64;  // safe
+  $export.R = 128; // real proto method for `library`
+  var _export = $export;
+
+  _export({
+    target: 'RegExp',
+    proto: true,
+    forced: _regexpExec !== /./.exec
+  }, {
+    exec: _regexpExec
+  });
+
+  var SPECIES$1 = _wks('species');
+
+  var REPLACE_SUPPORTS_NAMED_GROUPS = !_fails(function () {
+    // #replace needs built-in support for named groups.
+    // #match works fine because it just return the exec results, even if it has
+    // a "grops" property.
+    var re = /./;
+    re.exec = function () {
+      var result = [];
+      result.groups = { a: '7' };
+      return result;
+    };
+    return ''.replace(re, '$<a>') !== '7';
+  });
+
+  var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = (function () {
+    // Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
+    var re = /(?:)/;
+    var originalExec = re.exec;
+    re.exec = function () { return originalExec.apply(this, arguments); };
+    var result = 'ab'.split(re);
+    return result.length === 2 && result[0] === 'a' && result[1] === 'b';
+  })();
+
+  var _fixReWks = function (KEY, length, exec) {
+    var SYMBOL = _wks(KEY);
+
+    var DELEGATES_TO_SYMBOL = !_fails(function () {
+      // String methods call symbol-named RegEp methods
+      var O = {};
+      O[SYMBOL] = function () { return 7; };
+      return ''[KEY](O) != 7;
+    });
+
+    var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL ? !_fails(function () {
+      // Symbol-named RegExp methods call .exec
+      var execCalled = false;
+      var re = /a/;
+      re.exec = function () { execCalled = true; return null; };
+      if (KEY === 'split') {
+        // RegExp[@@split] doesn't call the regex's exec method, but first creates
+        // a new one. We need to return the patched regex when creating the new one.
+        re.constructor = {};
+        re.constructor[SPECIES$1] = function () { return re; };
+      }
+      re[SYMBOL]('');
+      return !execCalled;
+    }) : undefined;
+
+    if (
+      !DELEGATES_TO_SYMBOL ||
+      !DELEGATES_TO_EXEC ||
+      (KEY === 'replace' && !REPLACE_SUPPORTS_NAMED_GROUPS) ||
+      (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)
+    ) {
+      var nativeRegExpMethod = /./[SYMBOL];
+      var fns = exec(
+        _defined,
+        SYMBOL,
+        ''[KEY],
+        function maybeCallNative(nativeMethod, regexp, str, arg2, forceStringMethod) {
+          if (regexp.exec === _regexpExec) {
+            if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
+              // The native String method already delegates to @@method (this
+              // polyfilled function), leasing to infinite recursion.
+              // We avoid it by directly calling the native @@method method.
+              return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
+            }
+            return { done: true, value: nativeMethod.call(str, regexp, arg2) };
+          }
+          return { done: false };
+        }
+      );
+      var strfn = fns[0];
+      var rxfn = fns[1];
+
+      _redefine(String.prototype, KEY, strfn);
+      _hide(RegExp.prototype, SYMBOL, length == 2
+        // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
+        // 21.2.5.11 RegExp.prototype[@@split](string, limit)
+        ? function (string, arg) { return rxfn.call(string, this, arg); }
+        // 21.2.5.6 RegExp.prototype[@@match](string)
+        // 21.2.5.9 RegExp.prototype[@@search](string)
+        : function (string) { return rxfn.call(string, this); }
+      );
+    }
+  };
+
+  var $min = Math.min;
+  var $push = [].push;
+  var $SPLIT = 'split';
+  var LENGTH = 'length';
+  var LAST_INDEX$1 = 'lastIndex';
+
+  // eslint-disable-next-line no-empty
+  var SUPPORTS_Y = !!(function () { try { return new RegExp('x', 'y'); } catch (e) {} })();
+
+  // @@split logic
+  _fixReWks('split', 2, function (defined, SPLIT, $split, maybeCallNative) {
+    var internalSplit = $split;
+    if (
+      'abbc'[$SPLIT](/(b)*/)[1] == 'c' ||
+      'test'[$SPLIT](/(?:)/, -1)[LENGTH] != 4 ||
+      'ab'[$SPLIT](/(?:ab)*/)[LENGTH] != 2 ||
+      '.'[$SPLIT](/(.?)(.?)/)[LENGTH] != 4 ||
+      '.'[$SPLIT](/()()/)[LENGTH] > 1 ||
+      ''[$SPLIT](/.?/)[LENGTH]
+    ) {
+      // based on es5-shim implementation, need to rework it
+      internalSplit = function (separator, limit) {
+        var string = String(this);
+        if (separator === undefined && limit === 0) return [];
+        // If `separator` is not a regex, use native split
+        if (!_isRegexp(separator)) return $split.call(string, separator, limit);
+        var output = [];
+        var flags = (separator.ignoreCase ? 'i' : '') +
+                    (separator.multiline ? 'm' : '') +
+                    (separator.unicode ? 'u' : '') +
+                    (separator.sticky ? 'y' : '');
+        var lastLastIndex = 0;
+        var splitLimit = limit === undefined ? 4294967295 : limit >>> 0;
+        // Make `global` and avoid `lastIndex` issues by working with a copy
+        var separatorCopy = new RegExp(separator.source, flags + 'g');
+        var match, lastIndex, lastLength;
+        while (match = _regexpExec.call(separatorCopy, string)) {
+          lastIndex = separatorCopy[LAST_INDEX$1];
+          if (lastIndex > lastLastIndex) {
+            output.push(string.slice(lastLastIndex, match.index));
+            if (match[LENGTH] > 1 && match.index < string[LENGTH]) $push.apply(output, match.slice(1));
+            lastLength = match[0][LENGTH];
+            lastLastIndex = lastIndex;
+            if (output[LENGTH] >= splitLimit) break;
+          }
+          if (separatorCopy[LAST_INDEX$1] === match.index) separatorCopy[LAST_INDEX$1]++; // Avoid an infinite loop
+        }
+        if (lastLastIndex === string[LENGTH]) {
+          if (lastLength || !separatorCopy.test('')) output.push('');
+        } else output.push(string.slice(lastLastIndex));
+        return output[LENGTH] > splitLimit ? output.slice(0, splitLimit) : output;
+      };
+    // Chakra, V8
+    } else if ('0'[$SPLIT](undefined, 0)[LENGTH]) {
+      internalSplit = function (separator, limit) {
+        return separator === undefined && limit === 0 ? [] : $split.call(this, separator, limit);
+      };
+    }
+
+    return [
+      // `String.prototype.split` method
+      // https://tc39.github.io/ecma262/#sec-string.prototype.split
+      function split(separator, limit) {
+        var O = defined(this);
+        var splitter = separator == undefined ? undefined : separator[SPLIT];
+        return splitter !== undefined
+          ? splitter.call(separator, O, limit)
+          : internalSplit.call(String(O), separator, limit);
+      },
+      // `RegExp.prototype[@@split]` method
+      // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split
+      //
+      // NOTE: This cannot be properly polyfilled in engines that don't support
+      // the 'y' flag.
+      function (regexp, limit) {
+        var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== $split);
+        if (res.done) return res.value;
+
+        var rx = _anObject(regexp);
+        var S = String(this);
+        var C = _speciesConstructor(rx, RegExp);
+
+        var unicodeMatching = rx.unicode;
+        var flags = (rx.ignoreCase ? 'i' : '') +
+                      (rx.multiline ? 'm' : '') +
+                      (rx.unicode ? 'u' : '') +
+                      (SUPPORTS_Y ? 'y' : 'g');
+
+        // ^(? + rx + ) is needed, in combination with some S slicing, to
+        // simulate the 'y' flag.
+        var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);
+        var lim = limit === undefined ? 0xffffffff : limit >>> 0;
+        if (lim === 0) return [];
+        if (S.length === 0) return _regexpExecAbstract(splitter, S) === null ? [S] : [];
+        var p = 0;
+        var q = 0;
+        var A = [];
+        while (q < S.length) {
+          splitter.lastIndex = SUPPORTS_Y ? q : 0;
+          var z = _regexpExecAbstract(splitter, SUPPORTS_Y ? S : S.slice(q));
+          var e;
+          if (
+            z === null ||
+            (e = $min(_toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p
+          ) {
+            q = _advanceStringIndex(S, q, unicodeMatching);
+          } else {
+            A.push(S.slice(p, q));
+            if (A.length === lim) return A;
+            for (var i = 1; i <= z.length - 1; i++) {
+              A.push(z[i]);
+              if (A.length === lim) return A;
+            }
+            q = p = e;
+          }
+        }
+        A.push(S.slice(p));
+        return A;
+      }
+    ];
+  });
+
+  // 22.1.3.31 Array.prototype[@@unscopables]
+  var UNSCOPABLES = _wks('unscopables');
+  var ArrayProto = Array.prototype;
+  if (ArrayProto[UNSCOPABLES] == undefined) _hide(ArrayProto, UNSCOPABLES, {});
+  var _addToUnscopables = function (key) {
+    ArrayProto[UNSCOPABLES][key] = true;
+  };
+
+  var _iterStep = function (done, value) {
+    return { value: value, done: !!done };
+  };
+
+  var _iterators = {};
+
+  // fallback for non-array-like ES3 and non-enumerable old V8 strings
+
+  // eslint-disable-next-line no-prototype-builtins
+  var _iobject = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
+    return _cof(it) == 'String' ? it.split('') : Object(it);
+  };
+
+  // to indexed object, toObject with fallback for non-array-like ES3 strings
+
+
+  var _toIobject = function (it) {
+    return _iobject(_defined(it));
+  };
+
+  var max = Math.max;
+  var min$1 = Math.min;
+  var _toAbsoluteIndex = function (index, length) {
+    index = _toInteger(index);
+    return index < 0 ? max(index + length, 0) : min$1(index, length);
+  };
+
+  // false -> Array#indexOf
+  // true  -> Array#includes
+
+
+
+  var _arrayIncludes = function (IS_INCLUDES) {
+    return function ($this, el, fromIndex) {
+      var O = _toIobject($this);
+      var length = _toLength(O.length);
+      var index = _toAbsoluteIndex(fromIndex, length);
+      var value;
+      // Array#includes uses SameValueZero equality algorithm
+      // eslint-disable-next-line no-self-compare
+      if (IS_INCLUDES && el != el) while (length > index) {
+        value = O[index++];
+        // eslint-disable-next-line no-self-compare
+        if (value != value) return true;
+      // Array#indexOf ignores holes, Array#includes - not
+      } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
+        if (O[index] === el) return IS_INCLUDES || index || 0;
+      } return !IS_INCLUDES && -1;
+    };
+  };
+
+  var shared = _shared('keys');
+
+  var _sharedKey = function (key) {
+    return shared[key] || (shared[key] = _uid(key));
+  };
+
+  var arrayIndexOf = _arrayIncludes(false);
+  var IE_PROTO = _sharedKey('IE_PROTO');
+
+  var _objectKeysInternal = function (object, names) {
+    var O = _toIobject(object);
+    var i = 0;
+    var result = [];
+    var key;
+    for (key in O) if (key != IE_PROTO) _has(O, key) && result.push(key);
+    // Don't enum bug & hidden keys
+    while (names.length > i) if (_has(O, key = names[i++])) {
+      ~arrayIndexOf(result, key) || result.push(key);
+    }
+    return result;
+  };
+
+  // IE 8- don't enum bug keys
+  var _enumBugKeys = (
+    'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
+  ).split(',');
+
+  // 19.1.2.14 / 15.2.3.14 Object.keys(O)
+
+
+
+  var _objectKeys = Object.keys || function keys(O) {
+    return _objectKeysInternal(O, _enumBugKeys);
+  };
+
+  var _objectDps = _descriptors ? Object.defineProperties : function defineProperties(O, Properties) {
+    _anObject(O);
+    var keys = _objectKeys(Properties);
+    var length = keys.length;
+    var i = 0;
+    var P;
+    while (length > i) _objectDp.f(O, P = keys[i++], Properties[P]);
+    return O;
+  };
+
+  var document$2 = _global.document;
+  var _html = document$2 && document$2.documentElement;
+
+  // 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
+
+
+
+  var IE_PROTO$1 = _sharedKey('IE_PROTO');
+  var Empty = function () { /* empty */ };
+  var PROTOTYPE$1 = 'prototype';
+
+  // Create object with fake `null` prototype: use iframe Object with cleared prototype
+  var createDict = function () {
+    // Thrash, waste and sodomy: IE GC bug
+    var iframe = _domCreate('iframe');
+    var i = _enumBugKeys.length;
+    var lt = '<';
+    var gt = '>';
+    var iframeDocument;
+    iframe.style.display = 'none';
+    _html.appendChild(iframe);
+    iframe.src = 'javascript:'; // eslint-disable-line no-script-url
+    // createDict = iframe.contentWindow.Object;
+    // html.removeChild(iframe);
+    iframeDocument = iframe.contentWindow.document;
+    iframeDocument.open();
+    iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
+    iframeDocument.close();
+    createDict = iframeDocument.F;
+    while (i--) delete createDict[PROTOTYPE$1][_enumBugKeys[i]];
+    return createDict();
+  };
+
+  var _objectCreate = Object.create || function create(O, Properties) {
+    var result;
+    if (O !== null) {
+      Empty[PROTOTYPE$1] = _anObject(O);
+      result = new Empty();
+      Empty[PROTOTYPE$1] = null;
+      // add "__proto__" for Object.getPrototypeOf polyfill
+      result[IE_PROTO$1] = O;
+    } else result = createDict();
+    return Properties === undefined ? result : _objectDps(result, Properties);
+  };
+
+  var def = _objectDp.f;
+
+  var TAG$1 = _wks('toStringTag');
+
+  var _setToStringTag = function (it, tag, stat) {
+    if (it && !_has(it = stat ? it : it.prototype, TAG$1)) def(it, TAG$1, { configurable: true, value: tag });
+  };
+
+  var IteratorPrototype = {};
+
+  // 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
+  _hide(IteratorPrototype, _wks('iterator'), function () { return this; });
+
+  var _iterCreate = function (Constructor, NAME, next) {
+    Constructor.prototype = _objectCreate(IteratorPrototype, { next: _propertyDesc(1, next) });
+    _setToStringTag(Constructor, NAME + ' Iterator');
+  };
+
+  // 7.1.13 ToObject(argument)
+
+  var _toObject = function (it) {
+    return Object(_defined(it));
+  };
+
+  // 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
+
+
+  var IE_PROTO$2 = _sharedKey('IE_PROTO');
+  var ObjectProto = Object.prototype;
+
+  var _objectGpo = Object.getPrototypeOf || function (O) {
+    O = _toObject(O);
+    if (_has(O, IE_PROTO$2)) return O[IE_PROTO$2];
+    if (typeof O.constructor == 'function' && O instanceof O.constructor) {
+      return O.constructor.prototype;
+    } return O instanceof Object ? ObjectProto : null;
+  };
+
+  var ITERATOR = _wks('iterator');
+  var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
+  var FF_ITERATOR = '@@iterator';
+  var KEYS = 'keys';
+  var VALUES = 'values';
+
+  var returnThis = function () { return this; };
+
+  var _iterDefine = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
+    _iterCreate(Constructor, NAME, next);
+    var getMethod = function (kind) {
+      if (!BUGGY && kind in proto) return proto[kind];
+      switch (kind) {
+        case KEYS: return function keys() { return new Constructor(this, kind); };
+        case VALUES: return function values() { return new Constructor(this, kind); };
+      } return function entries() { return new Constructor(this, kind); };
+    };
+    var TAG = NAME + ' Iterator';
+    var DEF_VALUES = DEFAULT == VALUES;
+    var VALUES_BUG = false;
+    var proto = Base.prototype;
+    var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
+    var $default = $native || getMethod(DEFAULT);
+    var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
+    var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
+    var methods, key, IteratorPrototype;
+    // Fix native
+    if ($anyNative) {
+      IteratorPrototype = _objectGpo($anyNative.call(new Base()));
+      if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
+        // Set @@toStringTag to native iterators
+        _setToStringTag(IteratorPrototype, TAG, true);
+        // fix for some old engines
+        if (!_library && typeof IteratorPrototype[ITERATOR] != 'function') _hide(IteratorPrototype, ITERATOR, returnThis);
+      }
+    }
+    // fix Array#{values, @@iterator}.name in V8 / FF
+    if (DEF_VALUES && $native && $native.name !== VALUES) {
+      VALUES_BUG = true;
+      $default = function values() { return $native.call(this); };
+    }
+    // Define iterator
+    if ((!_library || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
+      _hide(proto, ITERATOR, $default);
+    }
+    // Plug for library
+    _iterators[NAME] = $default;
+    _iterators[TAG] = returnThis;
+    if (DEFAULT) {
+      methods = {
+        values: DEF_VALUES ? $default : getMethod(VALUES),
+        keys: IS_SET ? $default : getMethod(KEYS),
+        entries: $entries
+      };
+      if (FORCED) for (key in methods) {
+        if (!(key in proto)) _redefine(proto, key, methods[key]);
+      } else _export(_export.P + _export.F * (BUGGY || VALUES_BUG), NAME, methods);
+    }
+    return methods;
+  };
+
+  // 22.1.3.4 Array.prototype.entries()
+  // 22.1.3.13 Array.prototype.keys()
+  // 22.1.3.29 Array.prototype.values()
+  // 22.1.3.30 Array.prototype[@@iterator]()
+  var es6_array_iterator = _iterDefine(Array, 'Array', function (iterated, kind) {
+    this._t = _toIobject(iterated); // target
+    this._i = 0;                   // next index
+    this._k = kind;                // kind
+  // 22.1.5.2.1 %ArrayIteratorPrototype%.next()
+  }, function () {
+    var O = this._t;
+    var kind = this._k;
+    var index = this._i++;
+    if (!O || index >= O.length) {
+      this._t = undefined;
+      return _iterStep(1);
+    }
+    if (kind == 'keys') return _iterStep(0, index);
+    if (kind == 'values') return _iterStep(0, O[index]);
+    return _iterStep(0, [index, O[index]]);
+  }, 'values');
+
+  // argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
+  _iterators.Arguments = _iterators.Array;
+
+  _addToUnscopables('keys');
+  _addToUnscopables('values');
+  _addToUnscopables('entries');
+
+  var ITERATOR$1 = _wks('iterator');
+  var TO_STRING_TAG = _wks('toStringTag');
+  var ArrayValues = _iterators.Array;
+
+  var DOMIterables = {
+    CSSRuleList: true, // TODO: Not spec compliant, should be false.
+    CSSStyleDeclaration: false,
+    CSSValueList: false,
+    ClientRectList: false,
+    DOMRectList: false,
+    DOMStringList: false,
+    DOMTokenList: true,
+    DataTransferItemList: false,
+    FileList: false,
+    HTMLAllCollection: false,
+    HTMLCollection: false,
+    HTMLFormElement: false,
+    HTMLSelectElement: false,
+    MediaList: true, // TODO: Not spec compliant, should be false.
+    MimeTypeArray: false,
+    NamedNodeMap: false,
+    NodeList: true,
+    PaintRequestList: false,
+    Plugin: false,
+    PluginArray: false,
+    SVGLengthList: false,
+    SVGNumberList: false,
+    SVGPathSegList: false,
+    SVGPointList: false,
+    SVGStringList: false,
+    SVGTransformList: false,
+    SourceBufferList: false,
+    StyleSheetList: true, // TODO: Not spec compliant, should be false.
+    TextTrackCueList: false,
+    TextTrackList: false,
+    TouchList: false
+  };
+
+  for (var collections = _objectKeys(DOMIterables), i = 0; i < collections.length; i++) {
+    var NAME = collections[i];
+    var explicit = DOMIterables[NAME];
+    var Collection = _global[NAME];
+    var proto = Collection && Collection.prototype;
+    var key;
+    if (proto) {
+      if (!proto[ITERATOR$1]) _hide(proto, ITERATOR$1, ArrayValues);
+      if (!proto[TO_STRING_TAG]) _hide(proto, TO_STRING_TAG, NAME);
+      _iterators[NAME] = ArrayValues;
+      if (explicit) for (key in es6_array_iterator) if (!proto[key]) _redefine(proto, key, es6_array_iterator[key], true);
+    }
+  }
+
+  /*
+  * required polyfills
+  */
+  // eslint-disable-next-line consistent-return
+  (function () {
+    if (typeof NodeList.prototype.forEach === 'function') {
+      return false;
+    }
+
+    NodeList.prototype.forEach = Array.prototype.forEach;
+  })();
+  /** IE9, IE10 and IE11 requires all of the following polyfills. **/
+  // import 'core-js/es6/symbol'
+  // import 'core-js/es6/object'
+  // import 'core-js/es6/function'
+  // import 'core-js/es6/parse-int'
+  // import 'core-js/es6/parse-float'
+  // import 'core-js/es6/number'
+  // import 'core-js/es6/math'
+  // import 'core-js/es6/string'
+  // import 'core-js/es6/date'
+  // import 'core-js/es6/array'
+  // import 'core-js/es6/regexp'
+  // import 'core-js/es6/map'
+  // import 'core-js/es6/weak-map'
+  // import 'core-js/es6/set'
+  // import 'core-js/es7/object'
+
+  /** IE10 and IE11 requires the following for the Reflect API. */
+  // import 'core-js/es6/reflect'
+
+  /** Evergreen browsers require these. **/
+  // Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
+  // import 'core-js/es7/reflect'
+  // CustomEvent() constructor functionality in IE9, IE10, IE11
+  // (function () {
+  //
+  //   if ( typeof window.CustomEvent === "function" ) return false
+  //
+  //   function CustomEvent ( event, params ) {
+  //     params = params || { bubbles: false, cancelable: false, detail: undefined }
+  //     var evt = document.createEvent( 'CustomEvent' )
+  //     evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail )
+  //     return evt
+  //   }
+  //
+  //   CustomEvent.prototype = window.Event.prototype
+  //
+  //   window.CustomEvent = CustomEvent
+  // })()
+
+  var f$1 = Object.getOwnPropertySymbols;
+
+  var _objectGops = {
+  	f: f$1
+  };
+
+  var f$2 = {}.propertyIsEnumerable;
+
+  var _objectPie = {
+  	f: f$2
+  };
+
+  // 19.1.2.1 Object.assign(target, source, ...)
+
+
+
+
+
+  var $assign = Object.assign;
+
+  // should work with symbols and should have deterministic property order (V8 bug)
+  var _objectAssign = !$assign || _fails(function () {
+    var A = {};
+    var B = {};
+    // eslint-disable-next-line no-undef
+    var S = Symbol();
+    var K = 'abcdefghijklmnopqrst';
+    A[S] = 7;
+    K.split('').forEach(function (k) { B[k] = k; });
+    return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
+  }) ? function assign(target, source) { // eslint-disable-line no-unused-vars
+    var T = _toObject(target);
+    var aLen = arguments.length;
+    var index = 1;
+    var getSymbols = _objectGops.f;
+    var isEnum = _objectPie.f;
+    while (aLen > index) {
+      var S = _iobject(arguments[index++]);
+      var keys = getSymbols ? _objectKeys(S).concat(getSymbols(S)) : _objectKeys(S);
+      var length = keys.length;
+      var j = 0;
+      var key;
+      while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
+    } return T;
+  } : $assign;
+
+  // 19.1.3.1 Object.assign(target, source)
+
+
+  _export(_export.S + _export.F, 'Object', { assign: _objectAssign });
+
+  var $at = _stringAt(true);
+
+  // 21.1.3.27 String.prototype[@@iterator]()
+  _iterDefine(String, 'String', function (iterated) {
+    this._t = String(iterated); // target
+    this._i = 0;                // next index
+  // 21.1.5.2.1 %StringIteratorPrototype%.next()
+  }, function () {
+    var O = this._t;
+    var index = this._i;
+    var point;
+    if (index >= O.length) return { value: undefined, done: true };
+    point = $at(O, index);
+    this._i += point.length;
+    return { value: point, done: false };
+  });
+
+  // call something on iterator step with safe closing on error
+
+  var _iterCall = function (iterator, fn, value, entries) {
+    try {
+      return entries ? fn(_anObject(value)[0], value[1]) : fn(value);
+    // 7.4.6 IteratorClose(iterator, completion)
+    } catch (e) {
+      var ret = iterator['return'];
+      if (ret !== undefined) _anObject(ret.call(iterator));
+      throw e;
+    }
+  };
+
+  // check on default Array iterator
+
+  var ITERATOR$2 = _wks('iterator');
+  var ArrayProto$1 = Array.prototype;
+
+  var _isArrayIter = function (it) {
+    return it !== undefined && (_iterators.Array === it || ArrayProto$1[ITERATOR$2] === it);
+  };
+
+  var _createProperty = function (object, index, value) {
+    if (index in object) _objectDp.f(object, index, _propertyDesc(0, value));
+    else object[index] = value;
+  };
+
+  var ITERATOR$3 = _wks('iterator');
+
+  var core_getIteratorMethod = _core.getIteratorMethod = function (it) {
+    if (it != undefined) return it[ITERATOR$3]
+      || it['@@iterator']
+      || _iterators[_classof(it)];
+  };
+
+  var ITERATOR$4 = _wks('iterator');
+  var SAFE_CLOSING = false;
+
+  try {
+    var riter = [7][ITERATOR$4]();
+    riter['return'] = function () { SAFE_CLOSING = true; };
+  } catch (e) { /* empty */ }
+
+  var _iterDetect = function (exec, skipClosing) {
+    if (!skipClosing && !SAFE_CLOSING) return false;
+    var safe = false;
+    try {
+      var arr = [7];
+      var iter = arr[ITERATOR$4]();
+      iter.next = function () { return { done: safe = true }; };
+      arr[ITERATOR$4] = function () { return iter; };
+      exec(arr);
+    } catch (e) { /* empty */ }
+    return safe;
+  };
+
+  _export(_export.S + _export.F * !_iterDetect(function (iter) { }), 'Array', {
+    // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)
+    from: function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
+      var O = _toObject(arrayLike);
+      var C = typeof this == 'function' ? this : Array;
+      var aLen = arguments.length;
+      var mapfn = aLen > 1 ? arguments[1] : undefined;
+      var mapping = mapfn !== undefined;
+      var index = 0;
+      var iterFn = core_getIteratorMethod(O);
+      var length, result, step, iterator;
+      if (mapping) mapfn = _ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);
+      // if object isn't iterable or it's array with default iterator - use simple case
+      if (iterFn != undefined && !(C == Array && _isArrayIter(iterFn))) {
+        for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
+          _createProperty(result, index, mapping ? _iterCall(iterator, mapfn, [step.value, index], true) : step.value);
+        }
+      } else {
+        length = _toLength(O.length);
+        for (result = new C(length); length > index; index++) {
+          _createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
+        }
+      }
+      result.length = index;
+      return result;
+    }
+  });
+
+  var max$1 = Math.max;
+  var min$2 = Math.min;
+  var floor$1 = Math.floor;
+  var SUBSTITUTION_SYMBOLS = /\$([$&`']|\d\d?|<[^>]*>)/g;
+  var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&`']|\d\d?)/g;
+
+  var maybeToString = function (it) {
+    return it === undefined ? it : String(it);
+  };
+
+  // @@replace logic
+  _fixReWks('replace', 2, function (defined, REPLACE, $replace, maybeCallNative) {
+    return [
+      // `String.prototype.replace` method
+      // https://tc39.github.io/ecma262/#sec-string.prototype.replace
+      function replace(searchValue, replaceValue) {
+        var O = defined(this);
+        var fn = searchValue == undefined ? undefined : searchValue[REPLACE];
+        return fn !== undefined
+          ? fn.call(searchValue, O, replaceValue)
+          : $replace.call(String(O), searchValue, replaceValue);
+      },
+      // `RegExp.prototype[@@replace]` method
+      // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace
+      function (regexp, replaceValue) {
+        var res = maybeCallNative($replace, regexp, this, replaceValue);
+        if (res.done) return res.value;
+
+        var rx = _anObject(regexp);
+        var S = String(this);
+        var functionalReplace = typeof replaceValue === 'function';
+        if (!functionalReplace) replaceValue = String(replaceValue);
+        var global = rx.global;
+        if (global) {
+          var fullUnicode = rx.unicode;
+          rx.lastIndex = 0;
+        }
+        var results = [];
+        while (true) {
+          var result = _regexpExecAbstract(rx, S);
+          if (result === null) break;
+          results.push(result);
+          if (!global) break;
+          var matchStr = String(result[0]);
+          if (matchStr === '') rx.lastIndex = _advanceStringIndex(S, _toLength(rx.lastIndex), fullUnicode);
+        }
+        var accumulatedResult = '';
+        var nextSourcePosition = 0;
+        for (var i = 0; i < results.length; i++) {
+          result = results[i];
+          var matched = String(result[0]);
+          var position = max$1(min$2(_toInteger(result.index), S.length), 0);
+          var captures = [];
+          // NOTE: This is equivalent to
+          //   captures = result.slice(1).map(maybeToString)
+          // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
+          // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
+          // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
+          for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
+          var namedCaptures = result.groups;
+          if (functionalReplace) {
+            var replacerArgs = [matched].concat(captures, position, S);
+            if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
+            var replacement = String(replaceValue.apply(undefined, replacerArgs));
+          } else {
+            replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
+          }
+          if (position >= nextSourcePosition) {
+            accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
+            nextSourcePosition = position + matched.length;
+          }
+        }
+        return accumulatedResult + S.slice(nextSourcePosition);
+      }
+    ];
+
+      // https://tc39.github.io/ecma262/#sec-getsubstitution
+    function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {
+      var tailPos = position + matched.length;
+      var m = captures.length;
+      var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
+      if (namedCaptures !== undefined) {
+        namedCaptures = _toObject(namedCaptures);
+        symbols = SUBSTITUTION_SYMBOLS;
+      }
+      return $replace.call(replacement, symbols, function (match, ch) {
+        var capture;
+        switch (ch.charAt(0)) {
+          case '$': return '$';
+          case '&': return matched;
+          case '`': return str.slice(0, position);
+          case "'": return str.slice(tailPos);
+          case '<':
+            capture = namedCaptures[ch.slice(1, -1)];
+            break;
+          default: // \d\d?
+            var n = +ch;
+            if (n === 0) return ch;
+            if (n > m) {
+              var f = floor$1(n / 10);
+              if (f === 0) return ch;
+              if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
+              return ch;
+            }
+            capture = captures[n - 1];
+        }
+        return capture === undefined ? '' : capture;
+      });
+    }
+  });
+
   function _defineProperties(target, props) {
     for (var i = 0; i < props.length; i++) {
       var descriptor = props[i];
@@ -100,7 +1376,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): ajax-load.js
+   * CoreUI (v2.1.4): ajax-load.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -112,7 +1388,7 @@
      * ------------------------------------------------------------------------
      */
     var NAME = 'ajaxLoad';
-    var VERSION = '2.0.18';
+    var VERSION = '2.1.4';
     var DATA_KEY = 'coreui.ajaxLoad';
     var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
     var ClassName = {
@@ -305,7 +1581,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): toggle-classes.js
+   * CoreUI (v2.1.4): toggle-classes.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -330,7 +1606,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): aside-menu.js
+   * CoreUI (v2.1.4): aside-menu.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -342,7 +1618,7 @@
      * ------------------------------------------------------------------------
      */
     var NAME = 'aside-menu';
-    var VERSION = '2.0.18';
+    var VERSION = '2.1.4';
     var DATA_KEY = 'coreui.aside-menu';
     var EVENT_KEY = "." + DATA_KEY;
     var DATA_API_KEY = '.data-api';
@@ -378,10 +1654,10 @@
 
       // Private
       _proto._addEventListeners = function _addEventListeners() {
-        $$$1(Selector.ASIDE_MENU_TOGGLER).on(Event.CLICK, function (event) {
+        $$$1(document).on(Event.CLICK, Selector.ASIDE_MENU_TOGGLER, function (event) {
           event.preventDefault();
           event.stopPropagation();
-          var toggle = event.currentTarget.dataset.toggle;
+          var toggle = event.currentTarget.dataset ? event.currentTarget.dataset.toggle : $$$1(event.currentTarget).data('toggle');
           toggleClasses(toggle, ShowClassNames);
         });
       }; // Static
@@ -437,240 +1713,132 @@
     return AsideMenu;
   }($);
 
-  /**
-   * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): sidebar.js
-   * Licensed under MIT (https://coreui.io/license)
-   * --------------------------------------------------------------------------
-   */
+  // 7.2.2 IsArray(argument)
 
-  var Sidebar = function ($$$1) {
-    /**
-     * ------------------------------------------------------------------------
-     * Constants
-     * ------------------------------------------------------------------------
-     */
-    var NAME = 'sidebar';
-    var VERSION = '2.0.18';
-    var DATA_KEY = 'coreui.sidebar';
-    var EVENT_KEY = "." + DATA_KEY;
-    var DATA_API_KEY = '.data-api';
-    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
-    var Default = {
-      transition: 400
-    };
-    var ClassName = {
-      ACTIVE: 'active',
-      BRAND_MINIMIZED: 'brand-minimized',
-      NAV_DROPDOWN_TOGGLE: 'nav-dropdown-toggle',
-      OPEN: 'open',
-      SIDEBAR_FIXED: 'sidebar-fixed',
-      SIDEBAR_MINIMIZED: 'sidebar-minimized',
-      SIDEBAR_OFF_CANVAS: 'sidebar-off-canvas'
-    };
-    var Event = {
-      CLICK: 'click',
-      DESTROY: 'destroy',
-      INIT: 'init',
-      LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY,
-      TOGGLE: 'toggle',
-      UPDATE: 'update'
-    };
-    var Selector = {
-      BODY: 'body',
-      BRAND_MINIMIZER: '.brand-minimizer',
-      NAV_DROPDOWN_TOGGLE: '.nav-dropdown-toggle',
-      NAV_DROPDOWN_ITEMS: '.nav-dropdown-items',
-      NAV_ITEM: '.nav-item',
-      NAV_LINK: '.nav-link',
-      NAVIGATION_CONTAINER: '.sidebar-nav',
-      NAVIGATION: '.sidebar-nav > .nav',
-      SIDEBAR: '.sidebar',
-      SIDEBAR_MINIMIZER: '.sidebar-minimizer',
-      SIDEBAR_TOGGLER: '.sidebar-toggler'
-    };
-    var ShowClassNames = ['sidebar-show', 'sidebar-sm-show', 'sidebar-md-show', 'sidebar-lg-show', 'sidebar-xl-show'];
-    /**
-     * ------------------------------------------------------------------------
-     * Class Definition
-     * ------------------------------------------------------------------------
-     */
+  var _isArray = Array.isArray || function isArray(arg) {
+    return _cof(arg) == 'Array';
+  };
 
-    var Sidebar =
-    /*#__PURE__*/
-    function () {
-      function Sidebar(element) {
-        this._element = element;
-        this.ps = null;
-        this.perfectScrollbar(Event.INIT);
-        this.setActiveLink();
+  var SPECIES$2 = _wks('species');
 
-        this._addEventListeners();
-      } // Getters
+  var _arraySpeciesConstructor = function (original) {
+    var C;
+    if (_isArray(original)) {
+      C = original.constructor;
+      // cross-realm fallback
+      if (typeof C == 'function' && (C === Array || _isArray(C.prototype))) C = undefined;
+      if (_isObject(C)) {
+        C = C[SPECIES$2];
+        if (C === null) C = undefined;
+      }
+    } return C === undefined ? Array : C;
+  };
+
+  // 9.4.2.3 ArraySpeciesCreate(originalArray, length)
 
 
-      var _proto = Sidebar.prototype;
+  var _arraySpeciesCreate = function (original, length) {
+    return new (_arraySpeciesConstructor(original))(length);
+  };
 
-      // Public
-      _proto.perfectScrollbar = function perfectScrollbar(event) {
-        var _this = this;
+  // 0 -> Array#forEach
+  // 1 -> Array#map
+  // 2 -> Array#filter
+  // 3 -> Array#some
+  // 4 -> Array#every
+  // 5 -> Array#find
+  // 6 -> Array#findIndex
 
-        if (typeof PerfectScrollbar !== 'undefined') {
-          if (event === Event.INIT && !document.body.classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
-            this.ps = this.makeScrollbar();
-          }
 
-          if (event === Event.DESTROY) {
-            this.destroyScrollbar();
-          }
 
-          if (event === Event.TOGGLE) {
-            if (document.body.classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
-              this.destroyScrollbar();
-            } else {
-              this.ps = this.makeScrollbar();
-            }
-          }
 
-          if (event === Event.UPDATE && !document.body.classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
-            // ToDo: Add smooth transition
-            setTimeout(function () {
-              _this.destroyScrollbar();
 
-              _this.ps = _this.makeScrollbar();
-            }, Default.transition);
-          }
+  var _arrayMethods = function (TYPE, $create) {
+    var IS_MAP = TYPE == 1;
+    var IS_FILTER = TYPE == 2;
+    var IS_SOME = TYPE == 3;
+    var IS_EVERY = TYPE == 4;
+    var IS_FIND_INDEX = TYPE == 6;
+    var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
+    var create = $create || _arraySpeciesCreate;
+    return function ($this, callbackfn, that) {
+      var O = _toObject($this);
+      var self = _iobject(O);
+      var f = _ctx(callbackfn, that, 3);
+      var length = _toLength(self.length);
+      var index = 0;
+      var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
+      var val, res;
+      for (;length > index; index++) if (NO_HOLES || index in self) {
+        val = self[index];
+        res = f(val, index, O);
+        if (TYPE) {
+          if (IS_MAP) result[index] = res;   // map
+          else if (res) switch (TYPE) {
+            case 3: return true;             // some
+            case 5: return val;              // find
+            case 6: return index;            // findIndex
+            case 2: result.push(val);        // filter
+          } else if (IS_EVERY) return false; // every
         }
-      };
-
-      _proto.makeScrollbar = function makeScrollbar(container) {
-        if (container === void 0) {
-          container = Selector.NAVIGATION_CONTAINER;
-        }
-
-        var ps = new PerfectScrollbar(document.querySelector(container), {
-          suppressScrollX: true
-        }); // ToDo: find real fix for ps rtl
-
-        ps.isRtl = false;
-        return ps;
-      };
-
-      _proto.destroyScrollbar = function destroyScrollbar() {
-        if (this.ps) {
-          this.ps.destroy();
-          this.ps = null;
-        }
-      };
-
-      _proto.setActiveLink = function setActiveLink() {
-        $$$1(Selector.NAVIGATION).find(Selector.NAV_LINK).each(function (key, value) {
-          var link = value;
-          var cUrl = String(window.location).split('?')[0];
-
-          if (cUrl.substr(cUrl.length - 1) === '#') {
-            cUrl = cUrl.slice(0, -1);
-          }
-
-          if ($$$1($$$1(link))[0].href === cUrl) {
-            $$$1(link).addClass(ClassName.ACTIVE).parents(Selector.NAV_DROPDOWN_ITEMS).add(link).each(function (key, value) {
-              link = value;
-              $$$1(link).parent().addClass(ClassName.OPEN);
-            });
-          }
-        });
-      }; // Private
-
-
-      _proto._addEventListeners = function _addEventListeners() {
-        var _this2 = this;
-
-        $$$1(Selector.BRAND_MINIMIZER).on(Event.CLICK, function (event) {
-          event.preventDefault();
-          event.stopPropagation();
-          $$$1(Selector.BODY).toggleClass(ClassName.BRAND_MINIMIZED);
-        });
-        $$$1(Selector.NAV_DROPDOWN_TOGGLE).on(Event.CLICK, function (event) {
-          event.preventDefault();
-          event.stopPropagation();
-          var dropdown = event.target;
-          $$$1(dropdown).parent().toggleClass(ClassName.OPEN);
-
-          _this2.perfectScrollbar(Event.UPDATE);
-        });
-        $$$1(Selector.SIDEBAR_MINIMIZER).on(Event.CLICK, function (event) {
-          event.preventDefault();
-          event.stopPropagation();
-          $$$1(Selector.BODY).toggleClass(ClassName.SIDEBAR_MINIMIZED);
-
-          _this2.perfectScrollbar(Event.TOGGLE);
-        });
-        $$$1(Selector.SIDEBAR_TOGGLER).on(Event.CLICK, function (event) {
-          event.preventDefault();
-          event.stopPropagation();
-          var toggle = event.currentTarget.dataset.toggle;
-          toggleClasses(toggle, ShowClassNames);
-        });
-        $$$1(Selector.NAVIGATION + " > " + Selector.NAV_ITEM + " " + Selector.NAV_LINK + ":not(" + Selector.NAV_DROPDOWN_TOGGLE + ")").on(Event.CLICK, function () {
-          document.body.classList.remove('sidebar-show');
-        });
-      }; // Static
-
-
-      Sidebar._jQueryInterface = function _jQueryInterface() {
-        return this.each(function () {
-          var $element = $$$1(this);
-          var data = $element.data(DATA_KEY);
-
-          if (!data) {
-            data = new Sidebar(this);
-            $element.data(DATA_KEY, data);
-          }
-        });
-      };
-
-      _createClass(Sidebar, null, [{
-        key: "VERSION",
-        get: function get() {
-          return VERSION;
-        }
-      }]);
-
-      return Sidebar;
-    }();
-    /**
-     * ------------------------------------------------------------------------
-     * Data Api implementation
-     * ------------------------------------------------------------------------
-     */
-
-
-    $$$1(window).on(Event.LOAD_DATA_API, function () {
-      var sidebar = $$$1(Selector.SIDEBAR);
-
-      Sidebar._jQueryInterface.call(sidebar);
-    });
-    /**
-     * ------------------------------------------------------------------------
-     * jQuery
-     * ------------------------------------------------------------------------
-     */
-
-    $$$1.fn[NAME] = Sidebar._jQueryInterface;
-    $$$1.fn[NAME].Constructor = Sidebar;
-
-    $$$1.fn[NAME].noConflict = function () {
-      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
-      return Sidebar._jQueryInterface;
+      }
+      return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
     };
+  };
 
-    return Sidebar;
-  }($);
+  // 22.1.3.8 Array.prototype.find(predicate, thisArg = undefined)
+
+  var $find = _arrayMethods(5);
+  var KEY = 'find';
+  var forced = true;
+  // Shouldn't skip holes
+  if (KEY in []) Array(1)[KEY](function () { forced = false; });
+  _export(_export.P + _export.F * forced, 'Array', {
+    find: function find(callbackfn /* , that = undefined */) {
+      return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+    }
+  });
+  _addToUnscopables(KEY);
+
+  // @@match logic
+  _fixReWks('match', 1, function (defined, MATCH, $match, maybeCallNative) {
+    return [
+      // `String.prototype.match` method
+      // https://tc39.github.io/ecma262/#sec-string.prototype.match
+      function match(regexp) {
+        var O = defined(this);
+        var fn = regexp == undefined ? undefined : regexp[MATCH];
+        return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
+      },
+      // `RegExp.prototype[@@match]` method
+      // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match
+      function (regexp) {
+        var res = maybeCallNative($match, regexp, this);
+        if (res.done) return res.value;
+        var rx = _anObject(regexp);
+        var S = String(this);
+        if (!rx.global) return _regexpExecAbstract(rx, S);
+        var fullUnicode = rx.unicode;
+        rx.lastIndex = 0;
+        var A = [];
+        var n = 0;
+        var result;
+        while ((result = _regexpExecAbstract(rx, S)) !== null) {
+          var matchStr = String(result[0]);
+          A[n] = matchStr;
+          if (matchStr === '') rx.lastIndex = _advanceStringIndex(S, _toLength(rx.lastIndex), fullUnicode);
+          n++;
+        }
+        return n === 0 ? null : A;
+      }
+    ];
+  });
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI Utilities (v2.0.18): get-style.js
+   * CoreUI Utilities (v2.1.4): get-css-custom-properties.js
    * Licensed under MIT (https://coreui.io/license)
+   * @returns {string} css custom property name
    * --------------------------------------------------------------------------
    */
   var getCssCustomProperties = function getCssCustomProperties() {
@@ -736,7 +1904,307 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI Utilities (v2.0.18): hex-to-rgb.js
+   * CoreUI (v2.1.4): sidebar.js
+   * Licensed under MIT (https://coreui.io/license)
+   * --------------------------------------------------------------------------
+   */
+
+  var Sidebar = function ($$$1) {
+    /**
+     * ------------------------------------------------------------------------
+     * Constants
+     * ------------------------------------------------------------------------
+     */
+    var NAME = 'sidebar';
+    var VERSION = '2.1.4';
+    var DATA_KEY = 'coreui.sidebar';
+    var EVENT_KEY = "." + DATA_KEY;
+    var DATA_API_KEY = '.data-api';
+    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+    var Default = {
+      transition: 400
+    };
+    var ClassName = {
+      ACTIVE: 'active',
+      BRAND_MINIMIZED: 'brand-minimized',
+      NAV_DROPDOWN_TOGGLE: 'nav-dropdown-toggle',
+      OPEN: 'open',
+      SIDEBAR_FIXED: 'sidebar-fixed',
+      SIDEBAR_MINIMIZED: 'sidebar-minimized',
+      SIDEBAR_OFF_CANVAS: 'sidebar-off-canvas'
+    };
+    var Event = {
+      CLICK: 'click',
+      DESTROY: 'destroy',
+      INIT: 'init',
+      LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY,
+      TOGGLE: 'toggle',
+      UPDATE: 'update'
+    };
+    var Selector = {
+      BODY: 'body',
+      BRAND_MINIMIZER: '.brand-minimizer',
+      NAV_DROPDOWN_TOGGLE: '.nav-dropdown-toggle',
+      NAV_DROPDOWN_ITEMS: '.nav-dropdown-items',
+      NAV_ITEM: '.nav-item',
+      NAV_LINK: '.nav-link',
+      NAV_LINK_QUERIED: '.nav-link-queried',
+      NAVIGATION_CONTAINER: '.sidebar-nav',
+      NAVIGATION: '.sidebar-nav > .nav',
+      SIDEBAR: '.sidebar',
+      SIDEBAR_MINIMIZER: '.sidebar-minimizer',
+      SIDEBAR_TOGGLER: '.sidebar-toggler'
+    };
+    var ShowClassNames = ['sidebar-show', 'sidebar-sm-show', 'sidebar-md-show', 'sidebar-lg-show', 'sidebar-xl-show'];
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+    var Sidebar =
+    /*#__PURE__*/
+    function () {
+      function Sidebar(element) {
+        this._element = element;
+        this.mobile = false;
+        this.ps = null;
+        this.perfectScrollbar(Event.INIT);
+        this.setActiveLink();
+        this._breakpointTest = this._breakpointTest.bind(this);
+        this._clickOutListener = this._clickOutListener.bind(this);
+
+        this._addEventListeners();
+
+        this._addMediaQuery();
+      } // Getters
+
+
+      var _proto = Sidebar.prototype;
+
+      // Public
+      _proto.perfectScrollbar = function perfectScrollbar(event) {
+        var _this = this;
+
+        if (typeof PerfectScrollbar !== 'undefined') {
+          var classList = document.body.classList;
+
+          if (event === Event.INIT && !classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
+            this.ps = this.makeScrollbar();
+          }
+
+          if (event === Event.DESTROY) {
+            this.destroyScrollbar();
+          }
+
+          if (event === Event.TOGGLE) {
+            if (classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
+              this.destroyScrollbar();
+            } else {
+              this.destroyScrollbar();
+              this.ps = this.makeScrollbar();
+            }
+          }
+
+          if (event === Event.UPDATE && !classList.contains(ClassName.SIDEBAR_MINIMIZED)) {
+            // ToDo: Add smooth transition
+            setTimeout(function () {
+              _this.destroyScrollbar();
+
+              _this.ps = _this.makeScrollbar();
+            }, Default.transition);
+          }
+        }
+      };
+
+      _proto.makeScrollbar = function makeScrollbar(container) {
+        if (container === void 0) {
+          container = Selector.NAVIGATION_CONTAINER;
+        }
+
+        var ps = new PerfectScrollbar(document.querySelector(container), {
+          suppressScrollX: true
+        }); // ToDo: find real fix for ps rtl
+
+        ps.isRtl = false;
+        return ps;
+      };
+
+      _proto.destroyScrollbar = function destroyScrollbar() {
+        if (this.ps) {
+          this.ps.destroy();
+          this.ps = null;
+        }
+      };
+
+      _proto.setActiveLink = function setActiveLink() {
+        $$$1(Selector.NAVIGATION).find(Selector.NAV_LINK).each(function (key, value) {
+          var link = value;
+          var cUrl;
+
+          if (link.classList.contains(Selector.NAV_LINK_QUERIED)) {
+            cUrl = String(window.location);
+          } else {
+            cUrl = String(window.location).split('?')[0];
+          }
+
+          if (cUrl.substr(cUrl.length - 1) === '#') {
+            cUrl = cUrl.slice(0, -1);
+          }
+
+          if ($$$1($$$1(link))[0].href === cUrl) {
+            $$$1(link).addClass(ClassName.ACTIVE).parents(Selector.NAV_DROPDOWN_ITEMS).add(link).each(function (key, value) {
+              link = value;
+              $$$1(link).parent().addClass(ClassName.OPEN);
+            });
+          }
+        });
+      }; // Private
+
+
+      _proto._addMediaQuery = function _addMediaQuery() {
+        var sm = getStyle('--breakpoint-sm');
+
+        if (!sm) {
+          return;
+        }
+
+        var smVal = parseInt(sm, 10) - 1;
+        var mediaQueryList = window.matchMedia("(max-width: " + smVal + "px)");
+
+        this._breakpointTest(mediaQueryList);
+
+        mediaQueryList.addListener(this._breakpointTest);
+      };
+
+      _proto._breakpointTest = function _breakpointTest(e) {
+        this.mobile = Boolean(e.matches);
+
+        this._toggleClickOut();
+      };
+
+      _proto._clickOutListener = function _clickOutListener(event) {
+        if (!this._element.contains(event.target)) {
+          // or use: event.target.closest(Selector.SIDEBAR) === null
+          event.preventDefault();
+          event.stopPropagation();
+
+          this._removeClickOut();
+
+          document.body.classList.remove('sidebar-show');
+        }
+      };
+
+      _proto._addClickOut = function _addClickOut() {
+        document.addEventListener(Event.CLICK, this._clickOutListener, true);
+      };
+
+      _proto._removeClickOut = function _removeClickOut() {
+        document.removeEventListener(Event.CLICK, this._clickOutListener, true);
+      };
+
+      _proto._toggleClickOut = function _toggleClickOut() {
+        if (this.mobile && document.body.classList.contains('sidebar-show')) {
+          document.body.classList.remove('aside-menu-show');
+
+          this._addClickOut();
+        } else {
+          this._removeClickOut();
+        }
+      };
+
+      _proto._addEventListeners = function _addEventListeners() {
+        var _this2 = this;
+
+        $$$1(document).on(Event.CLICK, Selector.BRAND_MINIMIZER, function (event) {
+          event.preventDefault();
+          event.stopPropagation();
+          $$$1(Selector.BODY).toggleClass(ClassName.BRAND_MINIMIZED);
+        });
+        $$$1(document).on(Event.CLICK, Selector.NAV_DROPDOWN_TOGGLE, function (event) {
+          event.preventDefault();
+          event.stopPropagation();
+          var dropdown = event.target;
+          $$$1(dropdown).parent().toggleClass(ClassName.OPEN);
+
+          _this2.perfectScrollbar(Event.UPDATE);
+        });
+        $$$1(document).on(Event.CLICK, Selector.SIDEBAR_MINIMIZER, function (event) {
+          event.preventDefault();
+          event.stopPropagation();
+          $$$1(Selector.BODY).toggleClass(ClassName.SIDEBAR_MINIMIZED);
+
+          _this2.perfectScrollbar(Event.TOGGLE);
+        });
+        $$$1(document).on(Event.CLICK, Selector.SIDEBAR_TOGGLER, function (event) {
+          event.preventDefault();
+          event.stopPropagation();
+          var toggle = event.currentTarget.dataset ? event.currentTarget.dataset.toggle : $$$1(event.currentTarget).data('toggle');
+          toggleClasses(toggle, ShowClassNames);
+
+          _this2._toggleClickOut();
+        });
+        $$$1(Selector.NAVIGATION + " > " + Selector.NAV_ITEM + " " + Selector.NAV_LINK + ":not(" + Selector.NAV_DROPDOWN_TOGGLE + ")").on(Event.CLICK, function () {
+          _this2._removeClickOut();
+
+          document.body.classList.remove('sidebar-show');
+        });
+      }; // Static
+
+
+      Sidebar._jQueryInterface = function _jQueryInterface() {
+        return this.each(function () {
+          var $element = $$$1(this);
+          var data = $element.data(DATA_KEY);
+
+          if (!data) {
+            data = new Sidebar(this);
+            $element.data(DATA_KEY, data);
+          }
+        });
+      };
+
+      _createClass(Sidebar, null, [{
+        key: "VERSION",
+        get: function get() {
+          return VERSION;
+        }
+      }]);
+
+      return Sidebar;
+    }();
+    /**
+     * ------------------------------------------------------------------------
+     * Data Api implementation
+     * ------------------------------------------------------------------------
+     */
+
+
+    $$$1(window).on(Event.LOAD_DATA_API, function () {
+      var sidebar = $$$1(Selector.SIDEBAR);
+
+      Sidebar._jQueryInterface.call(sidebar);
+    });
+    /**
+     * ------------------------------------------------------------------------
+     * jQuery
+     * ------------------------------------------------------------------------
+     */
+
+    $$$1.fn[NAME] = Sidebar._jQueryInterface;
+    $$$1.fn[NAME].Constructor = Sidebar;
+
+    $$$1.fn[NAME].noConflict = function () {
+      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+      return Sidebar._jQueryInterface;
+    };
+
+    return Sidebar;
+  }($);
+
+  /**
+   * --------------------------------------------------------------------------
+   * CoreUI Utilities (v2.1.4): hex-to-rgb.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -772,7 +2240,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI Utilities (v2.0.18): hex-to-rgba.js
+   * CoreUI Utilities (v2.1.4): hex-to-rgba.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -810,9 +2278,36 @@
     return "rgba(" + r + ", " + g + ", " + b + ", " + opacity / 100 + ")";
   };
 
+  // 21.2.5.3 get RegExp.prototype.flags()
+  if (_descriptors && /./g.flags != 'g') _objectDp.f(RegExp.prototype, 'flags', {
+    configurable: true,
+    get: _flags
+  });
+
+  var TO_STRING = 'toString';
+  var $toString = /./[TO_STRING];
+
+  var define = function (fn) {
+    _redefine(RegExp.prototype, TO_STRING, fn, true);
+  };
+
+  // 21.2.5.14 RegExp.prototype.toString()
+  if (_fails(function () { return $toString.call({ source: 'a', flags: 'b' }) != '/a/b'; })) {
+    define(function toString() {
+      var R = _anObject(this);
+      return '/'.concat(R.source, '/',
+        'flags' in R ? R.flags : !_descriptors && R instanceof RegExp ? _flags.call(R) : undefined);
+    });
+  // FF44- RegExp#toString has a wrong name
+  } else if ($toString.name != TO_STRING) {
+    define(function toString() {
+      return $toString.call(this);
+    });
+  }
+
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): rgb-to-hex.js
+   * CoreUI (v2.1.4): rgb-to-hex.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
@@ -841,7 +2336,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * CoreUI (v2.0.18): index.js
+   * CoreUI (v2.1.4): index.js
    * Licensed under MIT (https://coreui.io/license)
    * --------------------------------------------------------------------------
    */
diff --git a/public/js/localization.js b/public/js/localization.js
index 736008403350..f2bdaa77eb3a 100644
--- a/public/js/localization.js
+++ b/public/js/localization.js
@@ -535,7 +535,7 @@ o[t.label]=e,o)),t._v(" "),t.multiple?n("button",{staticClass:"close",attrs:{dis
 
 "use strict";
 /* WEBPACK VAR INJECTION */(function(global, setImmediate) {/*!
- * Vue.js v2.5.17
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -545,8 +545,8 @@ o[t.label]=e,o)),t._v(" "),t.multiple?n("button",{staticClass:"close",attrs:{dis
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -564,7 +564,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -586,7 +586,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -626,7 +626,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -658,12 +658,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -675,7 +675,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -717,11 +717,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -783,10 +783,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -795,13 +797,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -825,6 +829,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -846,6 +852,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -890,6 +901,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -972,11 +985,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -1061,7 +1080,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -1088,7 +1107,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -1202,7 +1221,6 @@ if (true) {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -1231,6 +1249,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if ("development" !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -1242,13 +1266,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -1319,7 +1344,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -1333,6 +1361,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -1410,10 +1439,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -1421,14 +1451,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -1444,17 +1474,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -1495,7 +1525,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -1511,10 +1541,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -1543,6 +1573,8 @@ function defineReactive (
       if ("development" !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -1586,7 +1618,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1673,7 +1705,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -1996,15 +2032,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -2057,6 +2100,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -2164,11 +2209,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -2235,6 +2279,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -2281,7 +2368,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -2359,9 +2445,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -2442,6 +2530,16 @@ if (true) {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -2463,9 +2561,11 @@ if (true) {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -2474,7 +2574,8 @@ if (true) {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -2572,14 +2673,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2589,7 +2690,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -2844,10 +2948,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -2856,7 +2964,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2867,7 +2975,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2894,7 +3002,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -2957,37 +3065,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -3012,8 +3124,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -3023,7 +3133,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -3152,6 +3262,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -3181,31 +3299,20 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -3328,7 +3435,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -3468,7 +3581,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -3512,6 +3624,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -3554,7 +3669,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -3601,6 +3716,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if ("development" !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -3608,6 +3728,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -3633,6 +3755,7 @@ var Watcher = function Watcher (
     this.user = !!options.user;
     this.lazy = !!options.lazy;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
     this.deep = this.user = this.lazy = this.sync = false;
   }
@@ -3653,7 +3776,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       "development" !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -3712,13 +3835,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -3790,11 +3911,9 @@ Watcher.prototype.evaluate = function evaluate () {
  * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    this$1.deps[i].depend();
+    this.deps[i].depend();
   }
 };
 
@@ -3802,8 +3921,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -3813,7 +3930,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -3878,8 +3995,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -3890,7 +4007,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -4011,17 +4128,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if ("development" !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -4050,13 +4165,19 @@ function createComputedGetter (key) {
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (true) {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -4074,7 +4195,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -4116,7 +4237,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (true) {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -4146,7 +4267,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -4172,7 +4297,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (true) {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -4181,7 +4306,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -4253,9 +4378,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -4285,19 +4411,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -4385,12 +4499,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -4596,24 +4711,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (true) {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -4628,33 +4746,15 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -4666,9 +4766,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -4817,25 +4915,17 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -4850,20 +4940,43 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -4951,7 +5064,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -5033,15 +5146,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (true) {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -5059,14 +5172,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (true) {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -5083,15 +5188,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (true) {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if ("development" !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -5184,8 +5285,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -5428,6 +5527,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -5491,10 +5592,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -5554,11 +5653,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -5582,7 +5681,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -5624,7 +5723,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17';
+Vue.version = '2.5.21';
 
 /*  */
 
@@ -5902,20 +6001,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5933,7 +6031,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -6034,13 +6132,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -6141,7 +6239,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -6149,6 +6247,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -6200,7 +6299,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -6355,20 +6454,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -6382,7 +6481,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -6426,11 +6525,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -6471,6 +6582,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (true) {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -6612,7 +6726,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -6624,12 +6738,12 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -6660,7 +6774,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -6669,7 +6783,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -6704,8 +6818,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -6725,7 +6839,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6836,7 +6950,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -6920,7 +7034,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -6938,7 +7052,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -6976,7 +7090,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
@@ -7140,6 +7254,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -7155,18 +7281,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -7267,7 +7381,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -7302,12 +7416,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index$1, expressionPos, expressionEndPos;
 
 
 
@@ -7588,7 +7697,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -7601,12 +7710,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -7637,14 +7744,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -7738,7 +7845,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -7899,10 +8006,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -7916,7 +8025,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -7941,7 +8050,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -7965,20 +8074,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -8081,11 +8190,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -8139,8 +8249,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -8372,7 +8486,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -8461,7 +8575,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -8470,7 +8584,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -8681,18 +8795,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -8758,6 +8869,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -8772,7 +8887,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -8837,7 +8952,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -8875,21 +8990,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -8900,6 +9004,25 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      restoreActiveInstance();
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -8943,17 +9066,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -8979,6 +9091,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -9016,7 +9131,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -9049,7 +9164,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
@@ -9110,7 +9225,7 @@ if (inBrowser) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -9196,7 +9311,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -9240,7 +9355,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -9252,7 +9367,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-}
+};
 
 /*  */
 
@@ -9281,13 +9396,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -9302,11 +9410,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -9387,7 +9490,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -9504,12 +9607,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -9535,12 +9632,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -9589,7 +9683,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -9774,7 +9868,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -9898,8 +9993,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    if (true) {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transition-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -9937,7 +10044,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -10090,6 +10197,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          "development" !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -10238,16 +10353,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -10314,15 +10419,15 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-var model$2 = {
+var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass$1,
   style$1,
-  model$2
-]
+  model$1
+];
 
 /*  */
 
@@ -10344,7 +10449,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -10508,16 +10613,19 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -10540,8 +10648,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -10569,7 +10676,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -10606,7 +10712,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -10655,10 +10760,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -10666,9 +10775,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -10686,6 +10796,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -10694,7 +10808,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -10704,7 +10818,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -10720,7 +10837,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -10861,10 +10986,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -10956,7 +11081,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -10994,13 +11119,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -11038,7 +11166,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -11211,6 +11339,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -11382,6 +11512,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
 var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
diff --git a/public/js/localization.min.js b/public/js/localization.min.js
index 736008403350..f2bdaa77eb3a 100644
--- a/public/js/localization.min.js
+++ b/public/js/localization.min.js
@@ -535,7 +535,7 @@ o[t.label]=e,o)),t._v(" "),t.multiple?n("button",{staticClass:"close",attrs:{dis
 
 "use strict";
 /* WEBPACK VAR INJECTION */(function(global, setImmediate) {/*!
- * Vue.js v2.5.17
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -545,8 +545,8 @@ o[t.label]=e,o)),t._v(" "),t.multiple?n("button",{staticClass:"close",attrs:{dis
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -564,7 +564,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -586,7 +586,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -626,7 +626,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -658,12 +658,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -675,7 +675,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -717,11 +717,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -783,10 +783,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -795,13 +797,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -825,6 +829,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -846,6 +852,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -890,6 +901,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -972,11 +985,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -1061,7 +1080,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -1088,7 +1107,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -1202,7 +1221,6 @@ if (true) {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -1231,6 +1249,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if ("development" !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -1242,13 +1266,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -1319,7 +1344,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -1333,6 +1361,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -1410,10 +1439,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -1421,14 +1451,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -1444,17 +1474,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -1495,7 +1525,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -1511,10 +1541,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -1543,6 +1573,8 @@ function defineReactive (
       if ("development" !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -1586,7 +1618,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1673,7 +1705,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -1996,15 +2032,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -2057,6 +2100,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -2164,11 +2209,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -2235,6 +2279,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -2281,7 +2368,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -2359,9 +2445,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -2442,6 +2530,16 @@ if (true) {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -2463,9 +2561,11 @@ if (true) {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -2474,7 +2574,8 @@ if (true) {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -2572,14 +2673,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2589,7 +2690,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -2844,10 +2948,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -2856,7 +2964,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2867,7 +2975,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2894,7 +3002,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -2957,37 +3065,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -3012,8 +3124,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -3023,7 +3133,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -3152,6 +3262,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -3181,31 +3299,20 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -3328,7 +3435,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -3468,7 +3581,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -3512,6 +3624,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -3554,7 +3669,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -3601,6 +3716,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if ("development" !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -3608,6 +3728,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -3633,6 +3755,7 @@ var Watcher = function Watcher (
     this.user = !!options.user;
     this.lazy = !!options.lazy;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
     this.deep = this.user = this.lazy = this.sync = false;
   }
@@ -3653,7 +3776,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       "development" !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -3712,13 +3835,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -3790,11 +3911,9 @@ Watcher.prototype.evaluate = function evaluate () {
  * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    this$1.deps[i].depend();
+    this.deps[i].depend();
   }
 };
 
@@ -3802,8 +3921,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -3813,7 +3930,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -3878,8 +3995,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -3890,7 +4007,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -4011,17 +4128,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if ("development" !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -4050,13 +4165,19 @@ function createComputedGetter (key) {
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (true) {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -4074,7 +4195,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -4116,7 +4237,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (true) {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -4146,7 +4267,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -4172,7 +4297,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (true) {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -4181,7 +4306,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -4253,9 +4378,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -4285,19 +4411,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -4385,12 +4499,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -4596,24 +4711,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (true) {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -4628,33 +4746,15 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -4666,9 +4766,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -4817,25 +4915,17 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -4850,20 +4940,43 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -4951,7 +5064,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -5033,15 +5146,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (true) {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -5059,14 +5172,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (true) {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -5083,15 +5188,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (true) {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if ("development" !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -5184,8 +5285,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -5428,6 +5527,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -5491,10 +5592,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -5554,11 +5653,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -5582,7 +5681,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -5624,7 +5723,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17';
+Vue.version = '2.5.21';
 
 /*  */
 
@@ -5902,20 +6001,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5933,7 +6031,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -6034,13 +6132,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -6141,7 +6239,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -6149,6 +6247,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -6200,7 +6299,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -6355,20 +6454,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -6382,7 +6481,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -6426,11 +6525,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -6471,6 +6582,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (true) {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -6612,7 +6726,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -6624,12 +6738,12 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -6660,7 +6774,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -6669,7 +6783,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -6704,8 +6818,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -6725,7 +6839,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6836,7 +6950,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -6920,7 +7034,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -6938,7 +7052,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -6976,7 +7090,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
@@ -7140,6 +7254,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -7155,18 +7281,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -7267,7 +7381,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -7302,12 +7416,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index$1, expressionPos, expressionEndPos;
 
 
 
@@ -7588,7 +7697,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -7601,12 +7710,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -7637,14 +7744,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -7738,7 +7845,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -7899,10 +8006,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -7916,7 +8025,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -7941,7 +8050,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -7965,20 +8074,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -8081,11 +8190,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -8139,8 +8249,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -8372,7 +8486,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -8461,7 +8575,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -8470,7 +8584,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -8681,18 +8795,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -8758,6 +8869,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -8772,7 +8887,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -8837,7 +8952,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -8875,21 +8990,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -8900,6 +9004,25 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      restoreActiveInstance();
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -8943,17 +9066,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -8979,6 +9091,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -9016,7 +9131,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -9049,7 +9164,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
@@ -9110,7 +9225,7 @@ if (inBrowser) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -9196,7 +9311,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -9240,7 +9355,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -9252,7 +9367,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-}
+};
 
 /*  */
 
@@ -9281,13 +9396,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -9302,11 +9410,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -9387,7 +9490,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -9504,12 +9607,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -9535,12 +9632,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -9589,7 +9683,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -9774,7 +9868,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -9898,8 +9993,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    if (true) {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transition-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -9937,7 +10044,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -10090,6 +10197,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          "development" !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -10238,16 +10353,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -10314,15 +10419,15 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-var model$2 = {
+var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass$1,
   style$1,
-  model$2
-]
+  model$1
+];
 
 /*  */
 
@@ -10344,7 +10449,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -10508,16 +10613,19 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -10540,8 +10648,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -10569,7 +10676,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -10606,7 +10712,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -10655,10 +10760,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -10666,9 +10775,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -10686,6 +10796,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -10694,7 +10808,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -10704,7 +10818,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -10720,7 +10837,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -10861,10 +10986,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -10956,7 +11081,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -10994,13 +11119,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -11038,7 +11166,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -11211,6 +11339,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -11382,6 +11512,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
 var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
diff --git a/resources/js/src/components/client/ClientFilters.vue b/resources/js/src/components/client/ClientFilters.vue
index 8c245c52a22c..df2a19c77cc9 100644
--- a/resources/js/src/components/client/ClientFilters.vue
+++ b/resources/js/src/components/client/ClientFilters.vue
@@ -12,7 +12,7 @@ import Vue from 'vue'
 export default {
 
 mounted() {
-	console.dir('loaded');
+	
 	}
 }
 
diff --git a/resources/js/src/components/client/ClientList.vue b/resources/js/src/components/client/ClientList.vue
index 8561b51f9f28..2e8637203cd5 100644
--- a/resources/js/src/components/client/ClientList.vue
+++ b/resources/js/src/components/client/ClientList.vue
@@ -135,8 +135,5 @@ export default {
     background: #777777;
     color: #fff;
   }
-  .sortable th i:hover {
-    color: #fff;
-  }
 
 </style>
\ No newline at end of file
diff --git a/tests/Unit/DefaultSettingsTest.php b/tests/Unit/DefaultSettingsTest.php
new file mode 100644
index 000000000000..793af561ded1
--- /dev/null
+++ b/tests/Unit/DefaultSettingsTest.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\DataMapper\DefaultSettings;
+use Tests\TestCase;
+
+/**
+ * @test
+ * @covers  App\DataMapper\DefaultSettings
+ */
+class DefaultTest extends TestCase
+{
+
+    public function setUp()
+    {
+    
+    parent::setUp();
+	
+	}
+
+	public function testDefaultUserSettings()
+	{
+		$user_settings = DefaultSettings::userSettings();
+		
+		$this->assertEquals($user_settings->Client->datatable->per_page, 20);
+	}
+
+	public function testIsObject()
+	{
+		$user_settings = DefaultSettings::userSettings();
+
+        $this->assertInternalType('object',$user_settings->Client->datatable->column_visibility);
+
+	}
+}
\ No newline at end of file
diff --git a/tests/Unit/EvaluateStringTest.php b/tests/Unit/EvaluateStringTest.php
new file mode 100644
index 000000000000..e8a891739c47
--- /dev/null
+++ b/tests/Unit/EvaluateStringTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\DataMapper\DefaultSettings;
+use App\Models\Client;
+use Tests\TestCase;
+
+class EvaluateStringTest extends TestCase
+{
+
+	public function testClassNameResolution()
+	{
+		$this->assertEquals(class_basename(Client::class), 'Client');
+	}
+
+}
\ No newline at end of file
diff --git a/tests/Unit/NestedCollectionTest.php b/tests/Unit/NestedCollectionTest.php
new file mode 100644
index 000000000000..867d528bf35e
--- /dev/null
+++ b/tests/Unit/NestedCollectionTest.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Tests\Unit;
+
+use Tests\TestCase;
+
+/**
+ * @test
+ * @covers  App\Utils\NumberHelper
+ */
+class NestedCollectionTest extends TestCase
+{
+
+    public function setUp()
+    {
+    
+	    parent::setUp();
+
+	    $this->map = (object)[
+	        'client' => (object)[
+	        	'datatable' => (object)[
+	        		'per_page' => 20,
+	        		'column_visibility' => (object)[
+	        			'__checkbox' => true,
+	        			'name' => true,
+	        			'contact' => true,
+	        			'email' => true,
+	        			'client_created_at' => true,
+	        			'last_login' => true,
+	        			'balance' => true,
+	        			'__component:client-actions' => true,
+	        		]
+	        	]
+	        ]
+	    ];
+
+    }
+
+
+    public function testPerPageAttribute()
+    {
+		$this->assertEquals($this->map->client->datatable->per_page, 20);
+    }
+
+    public function testNameAttributeVisibility()
+    {
+    	$this->assertEquals($this->map->client->datatable->column_visibility->name, true);
+    }
+
+    public function testStringAsEntityProperty()
+    {
+    	$entity = 'client';
+
+    	$this->assertEquals($this->map->{$entity}->datatable->column_visibility->name, true);
+    }
+
+
+}
\ No newline at end of file