[gdm] (23 commits) Non-fast-forward update to branch wip/misc-fixes

[Ray Strode <halfline src gnome org>]

The branch 'wip/misc-fixes' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  4cebd04... manager: plug leak
  66e601f... common: get rid of some tabs that snuck in
  c9b74e1... common: remove unnecessary free

Commits added to the branch:

  4efc034... session-worker: don't set PAM_TTY to bogus value on failure (*)
  11fe198... Merge branch 'wip/fix-pam-group' into 'master' (*)
  cf8d918... local-display-factory: don't jump to failed display (*)
  4c790bf... local-display-factory: add some more debug statements (*)
  0e92e2c... Merge branch 'wip/fix-xorg-fallback' into 'master' (*)
  1ac1697... display-store: Pass the display object rather than the id i (*)
  59149d1... display: tie skeleton handlers to object lifetime (*)
  8ce95db... Merge branch 'wip/CVE-2018-14424-use-after-free' into 'mast (*)
  841a217... NEWS: update for release (*)
  0d64be3... configure: bump to 3.29.91 (*)
  d868eb3... local-display-factory: ignore spurios SeatNew signal at sta (*)
  21867af... Merge branch 'wip/hopefully-fix-startup-problem' into 'mast (*)
  285bb54... data: Makefile.am (*)
  68e764b... Merge branch 'master' into 'master' (*)
  385b9c2... Search sessions in XDG_DATA_DIRS (*)
  efd50c0... Merge branch 'xdg-session-dirs' into 'master' (*)
  d80a8a3... session: make sure conversation is closed before its freed (*)
  64e1e9c... Merge branch 'wip/fix-dbus-leak' into 'master' (*)
  e7c1087... data: 61-gdm.rules.in (*)
  4d53ac0... Merge branch 'disable-wayland-huawei-hi1710' into 'master' (*)
  7f8c798... manager: plug leak
  8d4ee62... common: get rid of some tabs that snuck in
  c0c62e4... common: remove unnecessary free

(*) This commit already existed in another branch; no separate mail sent