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

* remotes/upstream/master:
  ignore removed plugins
  fix messed up config tables w/ duplicate entries
  small fixes for the German strings
  fix bad sql update
  revert config changes, we're getting duplicate keys
  new-contacts-introductions in contacts-drop-down and new-messages in messages-drop-down get each an additional indicator... profile-picture is now scaled right in firefox... fixed broken css on introductions-page in firefox...

* master: