[gdm] (25 commits) Created branch multi-stack

[Ray Strode <halfline src gnome org>]

The branch 'multi-stack' was created.

Summary of new commits:

  3599108... Don't set list-visible unless the widget is visible
  8c32576... Add user chooser to ui file
  4ad19ff... Add new api to ask when chooser widget is done loading item
  cc32a00... Create session settings object up front
  47756bd... disconnect signal handlers in destroy session
  637c9e1... Introduce new Conversation object
  615d31b... Rename session worker to the service it's managing
  b8c7e79... Make greeter/autologin session explicitly request PAM conve
  d27ccaa... Store multiple conversations in the session
  c294bff... Return a different error code for "service won't work" than
  f51e259... Emit "service-unavailable" from session when pam service re
  ab4811e... Bubble service-unavailable up to greeter
  d10e526... Catch service-unavailable from server in client and propaga
  a426915... Queue a greeter reset when the user clicks cancel
  f913fe7... Don't delay login for passwd -d users
  a596615... Add a plugin based extension system to greeter
  0b52261... Show cancel button after first message
  03170ce... Prevent start session signal handler from getting called mu
  bbcc35d... Add fingerprint plugin
  c00fca2... Add smartcard plugin
  2b8cf67... When one PAM conversation wins, stop the others
  c8e6421... KILL pam stack instead of TERM pam stack
  245eec3... Drop the other hiding stuff for now.
  958e20f... add better debug spew (needs squash)
  c55e7bd... switch to proper mode when going to timed login