* Refactor mailers
* Fixes for mailer
* Fixes for approving a quote
* Refactor emailer
* Refactor emailer
* Attach files with GMail transport
* Attach files to GMail transport
* 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
* Minor fixes for user delete
* Working on notifications
* Refactor for notifications
* Fix for checking settings withe negative integers
* Set payment id to 0
* Move pdf download to client side routes
* fixes for company_user
* Fixes for company_user