* Add new columns to notifications table
* Remove stream from notifications and add new methods
* Turn off moderation comment notifications
* Add notifiable_type index to migration
* Stop creation of Stream-based notification model instances
* Add notification model create hooks
* Add badge achievement notification creation hook
* Fix some specs
* Add missing @ symbol
* Fix for tests and rename a few things
* forgot to uncomment code sigh
* Initial automatic cleanup with rubocop
* Fix syntax error introduced by rubocop
* Cleanup seeds file
* Cleanup lib folder
* Exclude bin folder because it contains auto generated files
* Make Rubocop a little bit more chatty
* Block length should not include comments in the count
* Cleanup config folder
* Cleanup specs
* Updated Rubocop version and generated a todo file
* Fix broken ArticlesApi spec
* Fix tests
* Restored rubocop pre-commit hook
