[gdm] (46 commits) Created branch multi-stack

[Ray Strode <halfline src gnome org>]

The branch 'multi-stack' was created.

Summary of new commits:

  0bff6e6... Introduce new Conversation object
  f7575f2... Rename session worker to the service it's managing
  478a058... Make greeter explicitly request PAM conversation
  2287d18... start autologin conversation when creating session if neces
  dbe4432... Store multiple conversations in the session
  b629987... Propagate service name to more layers
  00251c8... emit "ConversationStopped" signal at end of conv
  2f3c69a... Add limited support for multiple pam stacks
  deb7525... Create session settings object when first starting worker
  637d194... Queue a greeter reset when the user clicks cancel
  858dd3c... Add a plugin based extension system to greeter
  fff6336... Force session reset if all PAM conversations fail
  d237df8... Add a way for plugins to pick users from list
  d23c51f... Add new api to ask when chooser widget is done loading item
  d8133da... Tell tasks they're ready only after user list loads
  f9da689... Add fingerprint plugin
  2ac7309... Add a new "choosable" property to show tasks in user list
  52f1767... Separate handling of non-users in user list from users
  6d5c314... Initiate smart card auth when clicking on it in list
  a1bd5b7... Only show task list if user is selected
  0884531... Pull verification functions out into their own subroutines
  5f9eee5... Add new function find_task_with_service_name
  29df22b... Notify plugins if their user choose requests fail
  f282592... reset all conversations if password conversation fails
  df5aaad... When one PAM conversation wins, stop the others
  1df5d5b... When one PAM conv. wins, actually stop the others
  d419f30... KILL pam stack instead of TERM pam stack
  5e857de... Don't show tasklist for autologin
  f54dd41... Drop the other hiding stuff for now.
  40fec95... Prevent start session signal handler from getting called mu
  3192c3d... Don't show unimportant images on plugin buttons
  0bc53aa... Add visibility concept to task iface
  a9c858a... adapt fingerprint to task iface
  0543716... adapt smartcard plugin to task iface
  21a2bfe... adapt password to task iface
  08a8a08... Return a different error code for "service won't work" than
  a3a252e... Emit "service-unavailable" from session when pam service re
  b16f3cf... Bubble service-unavailable up to greeter
  02ed075... Catch service-unavailable from server in client and propaga
  5f14cf3... Add gdm_task_list_remove_task
  38139fc... Remove task from task list if unavailable
  015bd89... Don't add task to UI if it's invisible
  ed13f61... add lame check to see if fingerprint is enabled
  cf1bac3... don't activate invisible tasks
  44989d3... Add lame check for smart card daemon
  5cb866b... Don't delay login for passwd -d users