[gdm] Created tag 3.27.4

[Ray Strode <halfline src gnome org>]

The unsigned tag '3.27.4' was created.

Tagger: Ray Strode <rstrode redhat com>
Date: Mon Jan 8 15:58:00 2018 -0500

    Version 3.27.4
    
    - Fix for invalid DISPLAY/XAUTHORITY in session scripts
    - Fix for keyring integration on multidisk systems
    - Set GROUP environment variable
    - Deprecation fixes
    - Translation updates

Changes since the last tag '3.27.3':

Anders Jonsson (1):
      Update Swedish translation

Daniel Mustieles (1):
      Updated Spanish translation

Emin Tufan Çetin (1):
      Update Turkish translation

Fabio Tomat (1):
      Update Friulian translation

Marek Černocký (1):
      Updated Czech translation

Mario Blättermann (1):
      Update German translation

Matej Urbančič (1):
      Updated Slovenian translation

Ray Strode (4):
      common: don't run scripts with bogus DISPLAY and XAUTHORITY
      pam_gdm: bail if more than one password
      NEWS: update for release
      configure.ac: bump to 3.27.4

Robert Ancell (1):
      Replace deprecated GSimpleAsyncResult with GTask

Sam Spilsbury (1):
      common: Also set GROUP in scripts