[mutter] (4 commits) Non-fast-forward update to branch wip/nielsdg/shaped-texture-docs

[Jonas Ådahl <jadahl src gnome org>]

The branch 'wip/nielsdg/shaped-texture-docs' 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:

  874b03b... shaped-texture: Add a few explanatory comments

Commits added to the branch:

  38db4a5... wayland/wl-output: Emit "output-destroyed" signal earlier (*)
  696b534... wayland/surface: Send enter event when a client binds to wl (*)
  d9fb6b5... wayland/surface: Connect to "output-destroyed" in surface_e (*)
  cfa2d1a... shaped-texture: Add a few explanatory comments

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