[mutter] (3 commits) Non-fast-forward update to branch wip/monitor-crtc-private-struct

[Marco Trevisan <marcotrevi src gnome org>]

The branch 'wip/monitor-crtc-private-struct' 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:

  ab1428b... backends: Move MetaOutput::crtc field into private struct
  9b955ed... backends: Add logical monitor -> monitor -> output -> crtc 

Commits added to the branch:

  d9c18fd... monitor-manager: Add back warning messages (*)
  1200182... backends: Move MetaOutput::crtc field into private struct
  768ec15... backends: Add logical monitor -> monitor -> output -> crtc 

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