[gnome-shell] (7 commits) Non-fast-forward update to branch gbsneto/effects-paint-nodes

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

The branch 'gbsneto/effects-paint-nodes' 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:

  b6c4ec2... blur-effect: Port to paint nodes

Commits added to the branch:

  8451224... altTab: Remove down arrow when removing an app from switche (*)
  140ab4d... unlockDialog: Fix scale-factor handling on multihead (*)
  cb9842e... Use new clutter_actor_get_resource_scale() API (*)
  1524abc... Switch to ClutterActors resource-scale-changed signal (*)
  d885486... st/widget: Remove get_resource_scale function (*)
  bfbe8d1... blur-effect: Port to paint nodes
  29b4859... lookingGlass: Port to paint nodes

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