* Remove unnecessary save() on invoice
* Update copyright
* Working on Credit Repository
* Implement credits as a paymentable entity
* Add credit_id to transformer
* fix rules for update payment
* Fix random deleted_at keys in transformers
* Fix for password_protect check
* Refactor company properties to be presented from settings object instead of company properties
* Working on Email Tests
* Working on emails
* Working on email templats
* Include text version of email
* Refactor Email template builder into trait'
* Fix for custom_value4
* Refactor payment_date -> date && payment_type_id -> type_id
* expose paymentables to API
* expose paymentables to API
* Implement a next_send_date field in invoice/quote tables to allow control over reminder scheduling
* Add custom_values to users,documents and company_gateways tables
* fix for blank client settings
* Force all custom fields to strings
* Fixes for bulk actions
* Fixes for company POST route..
* Change text from Bitcoin to CRYPTO
* Implement default_gateway_type_id in transformer
* use scopes for company filtering
* Implement validation for portal_domain
* Add Google API client
* Add activities to company transformer
