[gnome-shell] (7 commits) Non-fast-forward update to branch wip/laney/systemd-user-units

[Iain Lane <iainl src gnome org>]

The branch 'wip/laney/systemd-user-units' 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:

  19b680c... endSessionDialog, loginManager: Get the session ID from log
  4a6f537... Add systemd units

Commits added to the branch:

  2c0376c... workspaceThumbnail: Initialize signal handler ids to 0 (*)
  47ea10b... Remove usage of MetaScreen (*)
  a301820... Update Catalan translation (*)
  f7355f5... closeDialog: use {disable,enable}_unredirect_for_display (*)
  266b0e9... keyboard: remove global.screen (*)
  34a4162... endSessionDialog, loginManager: Get the session ID from log
  e1c7401... Add systemd units

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