Changes from master branch
PA feed for submissions working
Added feed creattion PA
Added feeds and groups to PA and fixed a bug in the group create controller and view
Finished basic PA implementation per spec and closing #308
Per #310, I've implemented email notifications for content moderation.
Removed dong test
Merge branch 'public_activity'

* public_activity:
  Removed dong test
  Per #310, I've implemented email notifications for content moderation.
  Finished basic PA implementation per spec and closing #308
  Added feeds and groups to PA and fixed a bug in the group create controller and view
  Added feed creattion PA
  PA feed for submissions working
  Changes from master branch