[gdm] (8 commits) Non-fast-forward update to branch wip/nielsdg/meson

[Niels De Graef <nielsdg src gnome org>]

The branch 'wip/nielsdg/meson' 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:

  7935142... Allow building GDM with Meson.

Commits added to the branch:

  20ef701... Update Occitan translation (*)
  f44dbef... session-worker: set PWD for user session (*)
  79a7360... Merge branch 'wip/pwd-fix' into 'master' (*)
  feb1cf5... display-factory: avoid removing a display from store while  (*)
  ec2f5a8... Merge branch 'lr/store-purge' into 'master' (*)
  b0d1ca9... session-worker: unblock SIGUSR1 before PAM (*)
  47d6a70... Merge branch 'wip/rstrode/unblock-sigusr1' into 'master' (*)
  979fcac... Allow building GDM with Meson.

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