Feature group details

Added a "Group Details" Page

Populates UI with details from the group. Bottom section correctly allows someone to update the Group Name/Description in the backend. 

To Do's:
-Set updating info section to only show up if user is an admin
-Maybe figure out a better way to display Admin names. Using Jquery to update UI seems lame...
Since we do this for every page, I think we can add this to the "pre-loaded" function for the ui-router.