[gnome-shell] (4 commits) Non-fast-forward update to branch wip/carlosg/x11-services-on-demand

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/x11-services-on-demand' 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:

  335fec6... shell: Add helpers to start/stop systemd units
  8daa1bc... data: Add dependency on the X11 shell on gnome-session-x11-
  337e6b9... ibusManager: Add call to restart the ibus daemon
  74269ef... windowManager: Handle starting/stopping of X11 services

Commits added to the branch:

  348cd7c... shell: Add helpers to start/stop systemd units
  64fd59f... data: Add dependency on the X11 shell on gnome-session-x11-
  0a29ff4... ibusManager: Add call to restart the ibus daemon
  95e00f9... windowManager: Handle starting/stopping of X11 services