Merge branch 'master', remote-tracking branch 'remotes/upstream/master'

* remotes/upstream/master:
  prevent duplicate friend suggestions
  block filed items from deletion
  add the bang
  network filter is now a permission group
  small fix in css
  add right_aside to diabook-blue
  add connectable services to right_aside
  add PostIt to right_aside, fixes in css

* master: