Support dumping of animation jobs via QML_ANIMATION_TICK_DUMP.

Change-Id: I0b444321667691be3e1037164d02f29ed4dfc13e
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Verify empty SmoothedAnimation doesn't keep animation system running.

Change-Id: I8f8a9d31241e1bff9e72524b69d625258885558a
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>