[gdm] (10 commits) Created branch wip/wayland-for-demo

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

The branch 'wip/wayland-for-demo' was created.

Summary of new commits:

  9abc447... Revert "move over to using 'dconf compile' and file-db"
  52d78f0... Integrate the slaves into the main daemon process
  c71fbaa... display: Enforce a few invariants
  a37952b... display: Remove some unnecessary parts from dispose
  7a0e7b2... display: Clean up old signal handlers
  33381a9... slave: add ability to reset launch environment
  13e4b67... manager: Reset our own greeter when in a Wayland session
  f76f979... Add wayland-sessions
  a638053... own display server
  f54b04c... ff