[mutter] (7 commits) Non-fast-forward update to branch wip/idletime-inhibitors

[Bastien Nocera <hadess src gnome org>]

The branch 'wip/idletime-inhibitors' 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:

  2640de0... backends: Remove X11 idle-monitor backend
  71d7bfc... idle-monitor: Take idle inhibition into account
  35a1730... backend: Reset idle when lid is opened or resuming from sus
  80a46af... idle-monitor: Add ResetIdletime API, for testing purposes

Commits added to the branch:

  2f260ed... cogl: Read pixels as per the stored format (*)
  06c357d... mutter: allow building with elogind (*)
  63e2c03... window: Fix a small memory leak (*)
  fe18b38... backends: Remove X11 idle-monitor backend
  9286aac... idle-monitor: Take idle inhibition into account
  85019c1... backend: Reset idle when lid is opened or resuming from sus
  062b87d... idle-monitor: Add ResetIdletime API, for testing purposes

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