[mutter] (8 commits) 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:

  b37935d... constaints: Remove tiling constraint
  91d1f12... window: Split tile mode into preview and actual
  7cb70a2... window: Tile and resize considering the tile match
  90cf345... edge-resistance: Add snapping for tiled windows
  0803a7c... edge-resistance: Remove useless variable
  5649648... window: Raise and lower tile match in tandem
  aecb039... window: Also consider touching edges for matching tiled win

Commits added to the branch:

  fe80e8a... window: Split tile mode into preview and actual
  8c4ed25... window: Tile and resize considering the tile match
  d0fb032... edge-resistance: Add snapping for tiled windows
  eba717c... edge-resistance: Remove useless variable
  2db2a74... window: Raise and lower tile match in tandem
  314a053... window: Also consider touching edges for matching tiled win
  80a6a4a... window: Split retrieving and calculating tile areas
  75c11d0... [WIP] frames: Show double-arrow cursor on resizing two tile