[gdm] Created tag 3.31.91

[Ray Strode <halfline src gnome org>]

The unsigned tag '3.31.91' was created.

Tagger: Ray Strode <rstrode redhat com>
Date: 1551214551 -0500

    Version 3.31.91
    
    - Screen lock bypass fix (when timed login is enabled) (CVE-2019-3825)
    - PAM file updates
    - Improved debug logging
    - Keyboard layout fixes
    - Display foreach handling
    - Translation updates

Changes since the last tag '3.31.4':

Carmen Bianca BAKKER (1):
      Update Esperanto translation

Fran Dieguez (2):
      Update Galician translation
      Update Galician translation

Gun Chleoc (1):
      Update Scottish Gaelic translation

Iain Lane (4):
      manager,session: Add some debugging around starting reauthentication
      session: Don't allow greeter operations on an running session
      GdmManager: Don't perform timed login if session gets started
      build: Don't dist generated files

Marc-Antoine Perennou (1):
      pam-exherbo: drop legacy pam_systemd argument

Pieter Schalk Schoeman (1):
      Update Afrikaans translation

Ray Strode (10):
      Merge branch 'master' into 'master'
      manager: don't kill timed login session immediately after it starts
      Merge branch 'wip/timed-login-fix' into 'master'
      xdmcp-display-factory: don't return value from foreach funcs
      local-display-factory: don't return value from foreach funcs
      manager: don't return value from listify_display_ids
      Merge branch 'wip/foreach-fixes' into 'master'
      Merge branch 'iainl/dont-dist-generated-files' into 'master'
      NEWS: update for release
      configure: bump to 3.31.91

ilmaisin (1):
      Accept all keyboard layouts by default to prevent confusing behaviour

xiaoguang wang (1):
      display-store: make foreach ignore callback return value