Merge branch 'testing' of gitorious.org:statusnet/mainline into testing

* 'testing' of gitorious.org:statusnet/mainline:
  disable routes that aren't available in single-user mode
  upgrade to beta4
  Better error handling when the email subsystem isn't working. The installer was dying trying to send a confirmation email to the initial user.
  Store a list of all paths the router knows about (backward compatibility with Net_URL_Mapper)
  Upgrade 0.9.x bookmarks to 1.0.x
  add hooks for upgrades