[mutter] Non-fast-forward update to branch wip/gbsneto/tiling-improvements

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

The branch 'wip/gbsneto/tiling-improvements' 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:

  286a244... constraints: Add percentage constraint

Commits added to the branch:

  a06384f... constraints: Preserve window ratio in tile constraint (*)

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