[gdm] (4 commits) Non-fast-forward update to branch benzea/wait-seat-graphical

[Ray Strode <halfline src gnome org>]

The branch 'benzea/wait-seat-graphical' 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:

  40a0aa7... Merge branch 'cleanup-accelerated' into 'master'
  8698455... local-display-factory: Rename create_display to show it is 
  1fd3c14... local-display-factory: Move session type checking into crea
  db6a775... local-display-factory: Wait for seats to become graphical

Commits added to the branch:

  d265f01... daemon,common,libgdm: Drop use of sd_seat_can_multi_session
  cd99644... local-display-factory: Rename create_display to show it is 
  de40b74... local-display-factory: Move session type checking into crea
  4c90a9b... local-display-factory: Wait for seats to become graphical