[mutter] (3 commits) Non-fast-forward update to branch gbsneto/tracing

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

The branch 'gbsneto/tracing' 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:

  c9b24f1... profile: Add a Sysprof-based profiler (WIP)
  c8dd363... Add mutter-profiler script
  9d11415... cogl-trace: Cleanup context after disabling

Commits added to the branch:

  6a90db7... profile: Add a Sysprof-based profiler (WIP)
  1d868fe... Add mutter-profiler script
  3b86339... cogl-trace: Cleanup context after disabling