* add expenses, vendors and vendor_contacts along with factories and test data
* padding out vendors, expenses
* Minor fixes
* Add Expense and Company TransformerS
* Ensure payments, invoice and credit amount balance in the validator prior to saving
* additional payment validation rules and tests for processing payments
* Factories for credits
* Tests for payments
* Working on updating a payment
* Working on updating a payment
* fixes for updating a payment
* Working on Payment Tests
* More tests for payments, formrequests
* remove product_key as required from products
* 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
* Set payment number on completed payment
* Fix for paymentables not returning
* Do not set invoice status to paid if only a partial amount of the invoice has been paid
* Fixes for missing company object in events
* Cleanup client balancing code
* Fixes for client balance
* Fixes for missing company variable
* Fix activity transformer to prevent multiple DB calls
* Implement first_load query parameter which checks client size and returns an truncated response if client count is greater than 1000
* Fixes for listeners
* Implement first_load query parameter which checks client size and returns an truncated response if client count is greater than 1000
* Fixes for listeners
* Fix formatting and variable insertion for email templates
* Refactoring for invoice emails
* Fixes for midddleware
* Improve refresh includes
* change setting name
* Do not set email template defaults in settings
* Set invoice reminders, trait + tets
* Fixes for tets
* Only all an account owner to delete companies/users
* 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
