[gdm] Created tag 3.29.1

[Ray Strode <halfline src gnome org>]

The unsigned tag '3.29.1' was created.

Tagger: Ray Strode <rstrode redhat com>
Date: Wed May 16 16:06:23 2018 -0400

    3.29.1
    
    - Reference counting fixes for GdmClient- ensure plymouth is quit properly even when local greeter is 
disabled
    - make sure GDM doesn't hang when called with unknown command line arguments
    - Translation updates

Changes since the last tag '3.28.0':

Cheng-Chia Tseng (1):
      Update Chinese (Taiwan) translation

Dušan Kazik (1):
      Update Slovak translation

Iain Lane (1):
      libgdm: Drop weak refs on the GDBusConnection

Marco Trevisan (Treviño) (6):
      launch-environment: Order optional environment vertically
      launch-environment: Set PATH via optional_environment
      launch-environment: Export library and gio paths
      libgdm: Don't unref a connection that's in use
      libgdm: add weak pointer for connection object
      libgdm: get connection explicitly

Ray Strode (8):
      libgdm: drop support for serializing multiple opens
      libgdm: fix pointer/boolean task confusion
      libgdm: don't keep manager proxy around longer than we need it
      libgdm: use g_object_unref instead of g_clear_object for weakrefs
      display-access-file: fix early free
      display-access-file: drop unused function
      NEWS: update for release
      configure: bump to 3.29.1

Yetoo Happy (1):
      daemon: Don't call g_option_context_set_ignore_unknown_options

Yifan J (1):
      daemon/gdm-manager.c: quit plymouth when xdmcp is the only allowed connection.