[gdm] (21 commits) Created branch multi-stack

[Ray Strode <halfline src gnome org>]

The branch 'multi-stack' was created.

Summary of new commits:

  fb7fbb7... Revert "Don't wait a mandatory 2 seconds when resetting gre
  478763d... Add new api to ask when chooser widget is done loading item
  169b930... Create session settings object up front
  8064bdd... Introduce new Conversation object
  a61e88e... Rename session worker to the service it's managing
  74d9045... Make greeter/autologin session explicitly request PAM conve
  1e8878f... Store multiple conversations in the session
  6b1a2db... Don't delay login for passwd -d users
  c33dede... Emit "service-unavailable" from session when pam service re
  7586150... Bubble service-unavailable up to greeter
  bbf426e... Catch service-unavailable from server in client and propaga
  e98941c... Add a plugin based extension system to greeter
  21853b5... Add fingerprint plugin
  c17402b... Add smartcard plugin
  d0ceb9d... KILL stuck processes if they don't die on TERM
  ca7a5b9... switch to proper mode when going to timed login
  38cba80... Drop "Cancelling" message for plugin initiated cancels
  48e2232... Add delay when showing messages (needs split)
  b1a5a9a... Drop cancelling message
  3686fcd... manage tasks outside of task list
  7b1924f... smartcard: don't show extension if disabled in authconfig