* Update client paid to date job:
* Backup Invoice HTML when invoice is marked as sent and paid
* Store HTML of invoice when invoice was paid
* Fix foreign keys in db schema
* V2 Endpoints for Company Migrations
* Fixes for tests
* Fixes for Store Payment Validation
* Tests for Payments
* Use custom validator to ensure payments are made ONLY to payable invoices
* Working on custom payment validators
* Update Client balance
* fixes for client balance
* Fixes for activity API
* Refactor pivot table accessors
* Add select2 for client - country selector
* Fixes for client contact update
* implement ctrans() function across application
* Increase custom fields to 4 across the application
* Refactor: remove repos calling other repos, implement 4 custom values across application
* include querying the custom values in the client list
* Fix null custom value labels
* Scaffold for client - show view
* Working on Client Show
* Working on Oauth
* splitting out JS files
* Working on oAuth
* working on oAuth
* minor fixes
* create client
* create client
* create client
* Working on adding a client
