WIP: CFD-134 - Changing group permission

#156 
WIP
![selection_382](https://cloud.githubusercontent.com/assets/99186/4842556/cf25e086-6026-11e4-8afd-607ed72781f7.png)

no hardcoded URL. Use the ``And I go to "My bad hair day new group 1" of type "group"`` pattern.