[mutter] (16 commits) Non-fast-forward update to branch wip/carlosg/backendless-clutter

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/backendless-clutter' 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:

  1202078... backends/native: Remove unused array definition
  1484821... clutter: Demote CLUTTER_NOTE to g_debug in clutter-stage-co
  733368c... clutter: Make ClutterDamageHistory API public to mutter
  907b396... clutter: Make ClutterStageView API public to mutter
  fd0e2cc... clutter: Export private function to get debug flags
  5f41c2e... core: Add private utility function to get Clutter debug fla
  c85011a... clutter: Move ClutterStageCogl[View] code to src/backends
  5f4801d... backends: Rename ClutterStage[View]Cogl API and types
  5b59488... backends: Excise MetaStageView to its own file
  ee174ed... clutter: Drop Xsettings client code
  b372370... clutter: Drop dead X11 code
  a3aaa5e... backends: Shuffle ClutterBackendX11 code into MetaClutterBa
  1a37876... clutter: Drop generation of x11 pkgconfig file
  158f4ab... clutter: Remove leftovers from backend code in build system
  c9948b2... clutter: Remove unused EGL header

Commits added to the branch:

  b67d7c0... backends/native: Remove unused array definition
  0f79ef0... clutter: Demote CLUTTER_NOTE to g_debug in clutter-stage-co
  533c1f1... clutter: Make ClutterDamageHistory API public to mutter
  40a58e0... clutter: Make ClutterStageView API public to mutter
  839e84f... clutter: Export private function to get debug flags
  b77ded9... core: Add private utility function to get Clutter debug fla
  ab7c66a... clutter: Move ClutterStageCogl[View] code to src/backends
  6f79d82... backends: Rename ClutterStage[View]Cogl API and types
  a4d8eb1... backends: Excise MetaStageView to its own file
  1055aac... clutter: Drop Xsettings client code
  ad6b386... clutter: Drop dead X11 code
  c0badb2... backends: Shuffle ClutterBackendX11 code into MetaClutterBa
  d5828cc... clutter: Drop generation of x11 pkgconfig file
  1b2201e... clutter: Remove leftovers from backend code in build system
  ed9733d... clutter: Remove unused EGL header
  17739cf... backends: Promote g_debug() MetaStageImpl message to meta_t