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

* remotes/upstream/master:
  diabook-themes: fix css to login.tpl
  restore qcomment selector
  rev update
  zero-themes: add bbcode-toolbar to commentbox
  diabook-themes: small fix
  Diabook-dark css fix
  Diabook-dark, couple of new icons, and another css fix.
  fix tags test with new url
  quattro: small week calendar view for event/birthday reminders
  remove html from get_birthdays() and get_events()
  events page: set calendar start date from url (events/[year]/[month]/) and show event popup from url anchor (#link-[event id])

* master: