fixing issue where joined rooms would not show in header/lobby until refresh
gravatars!
making avatars not show on repeated messages; css
fixing double spacing issue in rooms
fixing issue where filter on ngRepeat changed order of array causing multiple gravatars to show
whoops, back to grabbing last messages THEN do sorting (mybad)
making new messages only go to connected room members
moving member of logic into a policy
changed how pub/sub is working for messages and rooms
updating user.rooms client side when user joins a new room
Merge remote-tracking branch 'upstream/master'