Added Pundit authorization gem
Added Rolify gem
Added Pundit exception rescue to 401
Added role and policy to Group model
Added GroupCreation abstraction
Added some tuning and specs
Better Group controller
Added more Group policies
Added Group policies specs
Added group admin factory alias
Fixed typos and removed commented lines
Fix transient attributes thing
Fixed typo
Merge pull request #21 from coopdevs/role-based-authorization

Role based authorization