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

* remotes/upstream/master:
  Darkzero - fixed notifications bar.
  diabook-theme: update mapquery and small fix
  diabook-theme: add "population density 2010"-layer to EarthLayers-box
  fix search/new against possible email leakage
  better test of email reply visibility
  diabook-theme:small fix
  moderated comment templates
  diabook-theme: small fix
  diabook-theme: include prv_message autocomplete
  fix PM replies after autocomplete changes
  add photos to PM autocomplete, improved appearance
  rev update
  diabook-theme: small fix

* master: