[mutter] (15 commits) Non-fast-forward update to branch wip/carlosg/input-in-backends

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/input-in-backends' 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:

  f26d315... clutter: Remove ClutterEventExtender interface
  7710213... clutter/cally: Remove needless per-backend code in cally
  5dd83dd... clutter: Drop _() define
  02f66e9... clutter: Remove event retrieval toggle
  cb88b92... clutter: Remove support for foreign stages
  bc73a6b... clutter: Temporarily comment out clutter tests
  c593cc5... clutter: Move X11 input to src/backends/x11
  d1c9692... backends: Don't use glib types in new X11 backend objects
  ebe65c7... backends: Move nested stage to src/backends/x11/nested
  7e534e4... clutter: Drop unused function to translate to screen coordi
  8ae615f... clutter: Drop functions to get XVisualInfo
  dae40f3... clutter: Move evdev input to src/backends/native
  c233913... backends: Don't use glib types in new native backend object
  e9fe179... clutter: Move tests to src/tests
  4ed215e... tests: Move clutter-test-utils.[ch] to src/tests

Commits added to the branch:

  e5d4e19... clutter: Remove ClutterEventExtender interface
  3d26b47... clutter/cally: Remove needless per-backend code in cally
  f8cc49a... clutter: Drop _() define
  59df9a5... clutter: Remove event retrieval toggle
  0e4f9f9... clutter: Remove support for foreign stages
  04b0412... clutter: Temporarily comment out clutter tests
  ad549e8... clutter: Move X11 input to src/backends/x11
  678e69b... backends: Don't use glib types in new X11 backend objects
  e97e929... backends: Move nested stage to src/backends/x11/nested
  fc602d1... clutter: Drop unused function to translate to screen coordi
  031a18a... clutter: Drop functions to get XVisualInfo
  b4d15a7... clutter: Move evdev input to src/backends/native
  85a8ba6... backends: Don't use glib types in new native backend object
  43df5fa... clutter: Move tests to src/tests
  0d83795... tests: Move clutter-test-utils.[ch] to src/tests