[mutter] (6 commits) Non-fast-forward update to branch wip/carlosg/async-xwayland-startup

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/async-xwayland-startup' 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:

  e10a7a1... x11: Set up the compositing manager selection on meta_displ
  d0943ff... tests: Ensure MetaX11Display is initialized before running 
  94d6b53... tests: Set fatal log handler on clutter tests
  c301fcd... core: Make meta_display_init_x11() an async function
  d7c5c6c... xwayland: Do not block on Xwayland initialization
  b9ea043... compositor: Shuffle x11 compositing bits in MetaCompositor

Commits added to the branch:

  9d53c9e... x11: Set up the compositing manager selection on meta_displ
  31a5f4e... tests: Ensure MetaX11Display is initialized before running 
  b623e38... tests: Set fatal log handler on clutter tests
  0255b77... core: Make meta_display_init_x11() an async function
  791cbda... xwayland: Do not block on Xwayland initialization
  f6663ac... compositor: Shuffle x11 compositing bits in MetaCompositor