* 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 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