* 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
* 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