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

* remotes/upstream/master:
  add title to D* posts
  allow users to set categories on their posts
  Modified peopleyouknow to handle sites without Facebook better
  diabook-themes: add link to global dir in "find friends" at right_aside
  modified:   mod/newmember.php
  New user quick start.
  check for style.php existence before inclusion
  Moved Diaspora notes away from top, per user request

* master: