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

* remotes/upstream/master:
  finished dry run - now for real test
  diabook-themes: state of the boxes at right_aside are now stored in db, instead of cookie.
  don't throw "did not contain xml" error if it's a valid rss that doesn't have the <?xml declaration
  If a contact has had delivery issues in the last 15 minutes, send new posts straight to the queue and don't even try to connect. Also defer polling for stuck contacts. Should reduce the number of stuck processes trying to connect with dead or dying servers significantly.
  separate poll_interval from delivery_interval - default is the same.

* master: