[mutter] (36 commits) Non-fast-forward update to branch gbsneto/actor-node-improvements

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'gbsneto/actor-node-improvements' 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:

  08b36b7... clutter/actor: Move paint flag to ClutterActorNode
  a689f9c... clutter/actor: Draw paint volumes using paint nodes
  7a9c250... clutter/actor: Cull actor out before painting

Commits added to the branch:

  5e87d67... surface-actor-wayland: Do not send frame callbacks if the a (*)
  1f5b403... display: Add 'closing' signal (*)
  955b276... plugin/default: Init quark before using (*)
  dc1a28c... plugins/default: Clean up tile preview when closing display (*)
  77aad08... window: Always update tile monitor number on hot plug (*)
  db91439... tests/monitor-unit-tests: Move test client sanity check int (*)
  47155ed... tests/runner: Move window shown synchronization to helper (*)
  155b7bf... tests/monitor-unit-tests: Add window tiling hot plug test (*)
  ff799a1... window: Reset tile monitor number when untiling (*)
  662c76c... tests/monitor-unit-tests: Add another tiling window hot plu (*)
  95eda36... wayland: use correct enum type for tablet pad (*)
  c11ef6e... wayland: Flatten data source object hierarchy (*)
  16eb461... wayland: Clean up meta_wayland_data_device_set_primary() (*)
  e865fcc... wayland: Check focus surface client in wl_data_device.set_s (*)
  efe5bed... x11-display: Don't unset the X11 focused window after setti (*)
  ffa0a24... x11-display: Get next serial just before using it (*)
  9172901... ci: Fix checkout out gnome-shell on stable branches (*)
  9b16b74... cogl: Remove unused stuff from cogl-material-compat.[ch] (*)
  54ac1f6... test: Remove unreferenced test-texture-rectangle (*)
  806ebc4... cogl: Remove cogl_texture_2d_gl_new_from_foreign (*)
  0e5a5df... wayland/actor-surface: Always store away frame callbacks on (*)
  2644e54... window: Warn if O-R window workspace state is used (*)
  13f10e3... window: Assert we only set a NULL workspace when unmanaging (*)
  c85fb10... window-props: Don't look for parent multiple times (*)
  bacbbbd... window-props: Don't set override redirect windows as top-le (*)
  4a76f66... wayland/surface: Don't double scale when getting absolute c (*)
  6944839... window-props: Read WM_TRANSIENT_FOR for override-redirect w (*)
  07ca100... cogl: glBlendEquationSeparate is always available (*)
  9cbf83d... cogl: glBlendFuncSeparate is always available (*)
  0545b93... plugins/default: Handle skipped animations (*)
  a4f51da... plugin-manager: Kill window effects on destroy (*)
  5afec87... input-settings/x11: Add missing clutter_x11_trap_x_errors a (*)
  7193938... compositor: Guard against untimely calls (*)
  03b59f9... clutter/actor: Move paint flag to ClutterActorNode
  044238b... clutter/actor: Draw paint volumes using paint nodes
  39e178a... clutter/actor: Cull actor out before painting

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