[mutter] (18 commits) Non-fast-forward update to branch wip/carlosg/event-cleanup

[Marge Bot <marge-bot src gnome org>]

The branch 'wip/carlosg/event-cleanup' 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:

  97b0f5c... clutter: Drop CLUTTER_CLIENT_MESSAGE event
  02dd73c... clutter: Drop CLUTTER_DESTROY_NOTIFY event
  e25c9f8... clutter: Simplify stage state management
  63a24fa... backends/x11: Drop platform-specific event data
  983a444... clutter: Move evdev evcode data to Clutter button/key event
  f2d86a4... backends: Unify touch sequence to slot conversion
  39d6f83... wayland: Drop HAVE_BACKEND_NATIVE checks in wl_touch implem
  29f97f0... clutter: Move relative motion information to ClutterEvent
  936a5c8... backends/native: Drop MetaEventNative
  48468ab... clutter: Drop infrastructure to copy/free platform event da
  13af876... clutter: Do not poke backend code for motion compression

Commits added to the branch:

  3c8bfc1... clutter/paint-node: Walk up paint node tree to find framebu (*)
  e45d1c6... Introduce ClutterEffectNode (*)
  5c772a6... clutter/effect: Add paint_node vfunc (*)
  89f9be0... clutter/paint-nodes: Add opacity overriding to ClutterActor (*)
  63ea2da... clutter/paint-nodes: Add new ClutterLayerNode API (*)
  4c75389... clutter/paint-nodes: Add serialization to layer node (*)
  033423f... Introduce ClutterBlitNode (*)
  49b3ac2... clutter: Drop CLUTTER_CLIENT_MESSAGE event
  96e320b... clutter: Drop CLUTTER_DESTROY_NOTIFY event
  4a0c56f... clutter: Simplify stage state management
  09b9569... backends/x11: Drop platform-specific event data
  9f5c453... clutter: Move evdev evcode data to Clutter button/key event
  eaa04ec... backends: Unify touch sequence to slot conversion
  4db5b95... wayland: Drop HAVE_BACKEND_NATIVE checks in wl_touch implem
  b887905... clutter: Move relative motion information to ClutterEvent
  64d5e8a... backends/native: Drop MetaEventNative
  0842ac9... clutter: Drop infrastructure to copy/free platform event da
  e21929b... clutter: Do not poke backend code for motion compression

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