[gdm] (50 commits) Created branch multi-stack

[Ray Strode <halfline src gnome org>]

The branch 'multi-stack' was created.

Summary of new commits:

  61fb36f... Drop session "Open" in favor of "StartConversation"
  150d2f0... Rename session worker to the service it's managing
  5a7f392... Make greeter explicitly request PAM conversation
  dc6fd10... Store multiple conversations in the session
  fe4b709... start autologin conversation when creating session if neces
  64ac771... Propagate service name to more layers
  2c1ed73... emit "ConversationStopped" signal at end of conv
  071750d... init session pid to -1
  26aafd7... Don't tear down greeter until pam_open_session finishes
  812afba... Add limited support for multiple pam stacks
  fbfe0dd... Create session settings object when first starting worker
  32b001a... Queue a greeter reset when the user clicks cancel
  8f99408... Add a plugin based extension system to greeter
  3be5d74... Force session reset if all PAM conversations fail
  1727878... Add a way for plugins to pick users from list
  4611642... Add new api to ask when chooser widget is done loading item
  ede8d9d... Tell tasks they're ready only after user list loads
  4aadd1e... Add fingerprint plugin
  04ae175... Add start of a smartcard plugin
  41aa37a... Add a new "choosable" property to show tasks in user list
  9c9a5dd... Separate handling of non-users in user list from users
  3701274... Initiate smart card auth when clicking on it in list
  0e30e8e... Only show task list if user is selected
  aed9a55... Pull verification functions out into their own subroutines
  0cd0503... Add new function find_task_with_service_name
  7d3a2cd... Notify plugins if their user choose requests fail
  f5ef0c1... reset all conversations if password conversation fails
  9d185ec... When one PAM conversation wins, stop the others
  67f633e... When one PAM conv. wins, actually stop the others
  a289961... KILL pam stack instead of TERM pam stack
  a33870b... Don't show tasklist for autologin
  1e8de8e... Drop the other hiding stuff for now.
  c6a1597... Prevent start session signal handler from getting called mu
  497ab40... Don't show unimportant images on plugin buttons
  4ed8c73... Add visibility concept to task iface
  bc661cd... adapt fingerprint to task iface
  e372a7f... adapt smartcard plugin to task iface
  c052e01... adapt password to task iface
  deb082b... Return a different error code for "service won't work" than
  6fe26b1... Emit "service-unavailable" from session when pam service re
  7ffe2e5... Bubble service-unavailable up to greeter
  9fe4903... Catch service-unavailable from server in client and propaga
  bb943f5... Fix memory handling of task in task list
  3900849... Add gdm_task_list_remove_task
  68f370d... Remove task from task list if unavailable
  452c610... Don't add task to UI if it's invisible
  7ad6475... add lame check to see if fingerprint is enabled
  cf00578... don't activate invisible tasks
  9b3eb3f... Add lame check for smart card daemon
  92a18ff... Don't delay login for passwd -d users