[mutter] (10 commits) Non-fast-forward update to branch wip/carlosg/drop-caps

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/drop-caps' 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:

  f294657... cogl: Defer EGLContext creation to a separate thread
  c470fb8... core: Move unix signal handler later in the process
  e5457f4... core: Set SCHED_RR by default on Wayland sessions
  5e87f83... core: Set up EGL context creation thread before dropping ca
  44b23cc... core: Drop all capabilities on initialization
  a795e6e... backends: Drop rt-scheduler configuration key
  d0dc849... backend/native: Use high priority contexts for secondary GP

Commits added to the branch:

  bcc519e... clutter: return correct enum type (*)
  a5f9862... output-kms: Fix "panel orientation" kms-prop being ignored  (*)
  8907a29... cursor-renderer/native: Fix cursor drawing in combination w (*)
  231d9e3... cogl: Defer EGLContext creation to a separate thread
  9d61e6e... core: Move unix signal handler later in the process
  b7a662b... core: Set SCHED_RR by default on Wayland sessions
  d8c4d78... core: Set up EGL context creation thread before dropping ca
  6ec6ea7... core: Drop all capabilities on initialization
  9e54e40... backends: Drop rt-scheduler configuration key
  4d6f99c... backend/native: Use high priority contexts for secondary GP

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