* Reduce arguments method buff! at model buffer_update
* Rename args and remove brackets as suggested
* Remove unnecessary args and improve buffer class
* Change constant name at buffer update and how call them
* remove comment and article docs when they are deleted
* fix banish user spec to handle ES deletes
* remove comments from elasticsearch when deleted via delete comments service
* Prepare factories and associations for Users::DeleteActivity specs
* Altered user associations, delete the needed associations in Users::DeleteActivity
* Moved and refined user deletion spec
* Removed useless commented user associations
* Refactored BackupData factory
* Refactored ProfilePin factory
* Refactored Reaction factory
* Fixed specs: Keep default _type in factories or specify it in tests
* Ok, notes shouldn't be deleted on user deletion
* Fixed creating reactable for specs
* Specify commentable/commentable_type explicitly when creating data for tests
* Fixed typo in the comments spec
* Removed unnneeded space
* Added aggregate_failures for testing user associations deletion
* Keep feedback_messages while deleting user activities
* Start with self deleting account
* Moved deleting user content and activity out of moderator hierarchy
* Added tests for the users delete services
* Tests for Users::DeleteComments
* User self-deletion (start)
* Some tests for user self-delete
* Specs for user self-deletion
* Test flash settings on users delete
* Added basic specs for the Users::DeleteJob
* Send notification when a user was destroyed
* Rename Users::DeleteJob to SelfDelete
* Change texts about self-deletion
* Fix users delete job spec
* Rescue and log exceptions while self-deleting user
* Added visible flash notices after deleting user
* Remove unneeded css for flash notice
* Fix link to a ghost account
* Remove redundant css
* Added github and twitter oauth apps links
