3.8.3
=====
* Add support for string-array preferences [Florian; #700223]
* Fix shade window action [Stef; #693714]
* Add API to freeze/unfreeze the keyboard [Rui; #697001]
* Grab and emit a signal when XK_ISO_Next_Group is pressed [Rui; #697002]
* Ensure events are always reported to the grab window [Rui; #701219]
* Use new clutter_stage_set_paint_callback() function to prevent dropping
  frames with frame synced toolkits [Owen; #698794]

Contributors:
  Rui Matos, Florian Müllner, Stef Walter, Owen W. Taylor