[gdm] (30 commits) Created branch multi-stack

[Ray Strode <halfline src gnome org>]

The branch 'multi-stack' was created.

Summary of new commits:

  b8b6b84... Drop session "Open" in favor of "StartConversation"
  842ab91... Rename session worker to the service it's managing
  21c1bc9... Make greeter explicitly request PAM conversation
  a5ff276... Store multiple conversations in the session
  58cc408... start autologin conversation when creating session if neces
  17e530f... Propagate service name to more layers
  0da2314... emit "ConversationStopped" signal at end of conv
  5e7249e... Don't tear down greeter until pam_open_session finishes
  7d76484... Add limited support for multiple pam stacks
  3dbbff5... Create session settings object when first starting worker
  503324a... Queue a greeter reset when the user clicks cancel
  fc7ff7b... Add a plugin based extension system to greeter
  d1e3b2f... Force session reset if all PAM conversations fail
  dfcd888... Add a way for plugins to pick users from list
  39b4c1f... Add new api to ask when chooser widget is done loading item
  20ee7a2... Tell tasks they're ready only after user list loads
  5f1fdf2... Add fingerprint plugin
  8e46ce3... Add start of a smartcard plugin
  bd66f35... Add a new "choosable" property to show tasks in user list
  669e4eb... Separate handling of non-users in user list from users
  1a9d81b... Initiate smart card auth when clicking on it in list
  8dafa2e... Only show task list if user is selected
  71fd476... Pull verification functions out into their own subroutines
  0d19a21... Add new function find_task_with_service_name
  af024db... Notify plugins if their user choose requests fail
  cd898cd... reset all conversations if password conversation fails
  55863d6... When one PAM conversation wins, stop the others
  0887e62... When one PAM conv. wins, actually stop the others
  749f107... KILL pam stack instead of TERM pam stack
  7749195... Don't show tasklist for autologin