[gdm] (48 commits) Created branch multi-stack

[Ray Strode <halfline src gnome org>]

The branch 'multi-stack' was created.

Summary of new commits:

  b4077fa... Introduce new Conversation object
  9716bdf... Rename session worker to the service it's managing
  1268399... Make greeter explicitly request PAM conversation
  af438a0... start autologin conversation when creating session if neces
  549b5ce... Store multiple conversations in the session
  920dee3... Propagate service name to more layers
  a2d019a... emit "ConversationStopped" signal at end of conv
  04a3a58... Add limited support for multiple pam stacks
  ce233cd... Create session settings object when first starting worker
  0709706... Queue a greeter reset when the user clicks cancel
  7f838d5... Add a plugin based extension system to greeter
  faa714f... Force session reset if all PAM conversations fail
  69b2cea... Add a way for plugins to pick users from list
  bc24ddb... Add new api to ask when chooser widget is done loading item
  96e4965... Tell tasks they're ready only after user list loads
  099b3b3... Add fingerprint plugin
  17a5f21... Add start of a smartcard plugin
  5ed5147... Add a new "choosable" property to show tasks in user list
  53d872a... Separate handling of non-users in user list from users
  3c36d79... Initiate smart card auth when clicking on it in list
  cfe67f8... Only show task list if user is selected
  823b160... Pull verification functions out into their own subroutines
  8046027... Add new function find_task_with_service_name
  e893317... Notify plugins if their user choose requests fail
  93b4328... reset all conversations if password conversation fails
  52cd9f6... When one PAM conversation wins, stop the others
  8ac945c... When one PAM conv. wins, actually stop the others
  462f6dc... KILL pam stack instead of TERM pam stack
  e86da90... Don't show tasklist for autologin
  9ee1387... Drop the other hiding stuff for now.
  299ad01... Prevent start session signal handler from getting called mu
  d4b2da7... Don't show unimportant images on plugin buttons
  f9be9a6... Add visibility concept to task iface
  9cc0a12... adapt fingerprint to task iface
  6c6016a... adapt smartcard plugin to task iface
  1b6d150... adapt password to task iface
  ab358f3... Return a different error code for "service won't work" than
  597895d... Emit "service-unavailable" from session when pam service re
  f72d8f9... Bubble service-unavailable up to greeter
  762022a... Catch service-unavailable from server in client and propaga
  475c9ab... Fix memory handling of task in task list
  46b6210... Add gdm_task_list_remove_task
  983c60e... Remove task from task list if unavailable
  be20a65... Don't add task to UI if it's invisible
  e8b0a58... add lame check to see if fingerprint is enabled
  b0bdbe6... don't activate invisible tasks
  555c176... Add lame check for smart card daemon
  bac0d57... Don't delay login for passwd -d users