[mutter] (4 commits) Non-fast-forward update to branch fix--replace

[Ray Strode <halfline src gnome org>]

The branch 'fix--replace' 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:

  671229f... backend: Clean up renderer after clutter backendm

Commits added to the branch:

  448ffae... stack: Check workspace in get_default_focus_window() (*)
  7afefbb... workspace: Add meta_workspace_get_default_focus_window() (*)
  ed391eb... window: Make default focus window on each workspace appear  (*)
  b8d74c0... backend: Clean up renderer after clutter backend

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