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* Test date_filter on user_activity stats [Carles Bruguera]
* Allow to specify published data, store real published as _created [Carles Bruguera]
* Add a date filter mechanism [Carles Bruguera]
* Notify comments on specified contexts [Carles Bruguera]
* Deepcopy mock message that was being overwritten [Carles Bruguera]
* PEP8 [Carles Bruguera]
* Context notifications based on a literal instead of bool [Carles Bruguera]
* Tests on contexts with notifications [Carles Bruguera]
* Provide return values in existing tests used in rabbitmq tests [Carles Bruguera]
* Conditional rabbitmq tests boilerplate [Carles Bruguera]
* Simplify custom exception classes [Carles Bruguera]
* Refactor notifications into a wrapper class [Carles Bruguera]
* Move calls to notifications on ws endpoints to models (except conversation creation) [Carles Bruguera]
* Raise 503 when rabbitmq not available on starting max [Carles Bruguera]
* Fix dependencies [Carles Bruguera]