* Fixes for null values in custom values
* Refactor mailing
* Working on send emails from GMail API
* Fixes for tests
* Test for GMail
* Adjustments for storing oauth token
* Update Exchange rate Data once a day
* Tests for currency conversions
* Fixes for tests
* Fix for adding blank product keys
* Class for logging emails sent
* Fixes for tests
* Fixes for testS
* Include credits in first_load=true
* Fixes for tests
* fixes for tests
* Fixes for tests:
* Fixes for tests
* Fixes for tests
* Fix whereClientId when starting payment
* Refunding using Paypal
* Refunding engine
* Cleanup and making refund method work
* Remove "refund" method from BasePaymentController
* Add "refund" to PaypalExpressPaymentDriver
* Extract refunding into own classes
* Apply php-cs-fixer to PaypalExpress
* Refunding with stripe
* Update Exchange rate Data once a day
* Tests for currency conversions
* Fixes for tests
* Fix for adding blank product keys
* Class for logging emails sent
* fixes for oauth
* Working on subscriptions
* Implement return type in models
* Subscription implementation
* Improvements to handling importation of large accountS
* Loggin imports
* Activate collector
* Improve memory usage of import script
* Quote actions
* Send Quotes
* Fixes for seg faults!
* Minor fixes
* Fixes for client contact scopes
* Working on subscriptions
* Implement return type in models
* Subscription implementation
* Improvements to handling importation of large accountS
* Loggin imports
* Activate collector
* Improve memory usage of import script
* Appen Tags into emails - fix companygatewaytransformer
* minor fixes for name spaces, collector facade and composer version bump
* Fixes for invoiceworkflowsettings
* Add more context to support emails
* Working on Firing Subscriptions
* Minor fixes
* Fixes for gateway filtering
* Checkout Driver
* Fixes for invitations not being created in RandomDataSeeder
* Resend failed/quota exceeded emails
* Queue email tests
* Refund a client for a ninja account
* Adjust email quotas - hosted plan