Update comments in models/group.py (changed Optional to Required). Add verbose_name to founder property in Group model.
Update comments in models/group.py (changed Optional to Required). Add verbose_name to founder property in Group model.

Patch by: Pawel Solyga
Review by: to-be-reviewed

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