[mutter] (7 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:

  bf3f7fe... cogl: Defer EGLContext creation to a separate thread
  dd7c1d0... core: Drop all capabilities on initialization
  4fb88a5... core: Move unix signal handler later in the process
  97c66c0... core: Set SCHED_RR by default on Wayland sessions
  4df7bc6... core: Set up EGL context creation thread before dropping ca
  b3e8e1c... backends: Drop rt-scheduler configuration key
  3fa3984... backend/native: Use high priority contexts for secondary GP

Commits added to the branch:

  1399cb2... cogl: Defer EGLContext creation to a separate thread
  f04e301... core: Drop all capabilities on initialization
  d93b156... core: Move unix signal handler later in the process
  1f67b6e... core: Set SCHED_RR by default on Wayland sessions
  29ed1b5... core: Set up EGL context creation thread before dropping ca
  6575db5... backends: Drop rt-scheduler configuration key
  52f6c8b... backend/native: Use high priority contexts for secondary GP