[gdm] (8 commits) Non-fast-forward update to branch wip/wayland-rebase

[Jasper St. Pierre <jstpierre src gnome org>]

The branch 'wip/wayland-rebase' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  2894def... worker: move PAM tty/display setup to open session
  4af0321... daemon: add new gdm_session_is_running method
  e804a28... daemon: move user session code from slave to main daemon
  af7a2aa... slave: add ability to reset launch environment
  869774a... daemon: support launching sessions on separate VT
  4f2a412... slave: Make all the "cached display" properties readonly
  5a3c1f9... destroy slave

Commits added to the branch:

  8f9a09f... slave: Make all the "cached display" properties readonly (*)
  14253ff... session: Add support for XDG_SESSION_DESKTOP (*)
  07b78cd... worker: move PAM tty/display setup to open session
  e7bbd33... daemon: add new gdm_session_is_running method
  d1010ed... daemon: move user session code from slave to main daemon
  10aef5c... slave: add ability to reset launch environment
  3a92a3b... daemon: support launching sessions on separate VT
  4773f9e... emancipation proclamation

(*) This commit already existed in another branch; no separate mail sent