[mutter] (7 commits) Non-fast-forward update to branch gbsneto/pick-culling

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

The branch 'gbsneto/pick-culling' 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:

  923cf5b... clutter/pick-stack: Add autoptr support
  35c637a... clutter/stage: Remove cached pick mode
  d750717... clutter/pick-context: Store point and ray on construction
  815c8e6... clutter/paint-volume: Add new API to convert to graphene_bo
  6628cc7... clutter/actor: Cull out when picking

Commits added to the branch:

  0320649... clutter/actor: Always update last_paint_volumes during pain (*)
  58930e9... clutter/actor: Use a variable to check if culling is allowe (*)
  bc71048... clutter/pick-stack: Add autoptr support
  5076fe8... clutter/stage: Remove cached pick mode
  1ff5015... clutter/pick-context: Store point and ray on construction
  eb9a66f... clutter/paint-volume: Add new API to convert to graphene_bo
  1453ea2... clutter/actor: Cull out when picking

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