In soc.views.models.notification module remove unused imports, add missing white space, change list() method definition to comply with base View list() method declaration. Add missing Meta class docstring.
In soc.views.models.notification module remove unused imports, add missing white space, change list() method definition to comply with base View list() method declaration. Add missing Meta class docstring.

Patch by: Pawel Solyga

MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging