[gdm] Created tag 3.22.3

[Ray Strode <halfline src gnome org>]

The unsigned tag '3.22.3' was created.

Tagger: Ray Strode <rstrode redhat com>
Date: Mon Mar 6 13:10:46 2017 -0500

    Version 3.22.3
    
    - Fix regression in wayland fallback code
    - Fix for headless sessions
    - Change around how PostLogin/PostSession scripts are run
    - Fix XDMCP in network environments with poor network resolution
    - Don't try to user switch with XDMCP

Changes since the last tag '3.22.2':

Ray Strode (8):
      session: honor ignore-wayland flag
      session-worker: always set XDG_VTNR for seat0
      worker: run PostLogin/PreSession scripts later
      manager: handle session failing to start
      common: limit potentially expensive name lookups
      manager: don't try to activate session if session not on seat
      NEWS: update for release
      configure: bump to 3.22.3