Log Message:
Update clutter to 1.16.4.

Clutter 1.16.4                                                       2014-01-24
===============================================================================

  • List of changes since Clutter 1.16.2

    - Performance improvements
    Avoid using hardware picking as much as possible; do not queue redraws
    when not needed, and rely on clipped redraws more.

    - Accessibility fixes

  • List of bugs fixed since Clutter 1.16.2

    #710227 - ClutterGestureAction memory corruption
    #719747 - ClutterStage: Don't add empty actors to the stage clip
    #712563 - Fixes for cogl journal usage when picking
    #722220 - Incorrect string reported in accessible text-changed events
              when text is removed
    #722188 - atk_text_get_n_selections() should return 0 when no text is
              selected
    #719901 - ClutterStageCogl: Ignore a clip the size of the stage
    #719563 - input-device: Guard against double free
    #719367 - Bind constraints: Don't force redraws on source relayout
    #719368 - Don't queue redraws when reallocating actor that haven't moved

Many thanks to:

  Owen W. Taylor, Alejandro Piñeiro, Jasper St. Pierre, Florian Müllner,
  Lionel Landwerlin, Sphinx Jiang, Wylmer Wang.