[clutter] (8 commits) Created branch wip/correct-opacity

[Neil Roberts <nroberts src gnome org>]

The branch 'wip/correct-opacity' was created.

Summary of new commits:

  c3aa4d2... clutter-effect: Add a 'run' virtual
  11443ed... clutter-offscreen-effect: Don't redraw the actor if cached 
  00b733a... clutter-effect: Add clutter_effect_queue_rerun
  9423214... clutter-actor-meta: Add an internal 'priority' property
  8df8d4f... clutter-actor: Redraw or relayout when clearing effects or 
  7f78237... clutter-actor: Add an 'offscreen-redirect' property
  2a09a04... Add a conformance test for the offscreen-redirect property
  701440e... clutter-actor: Add a 'has_overlaps' virtual