* Manually merged patch in http://casparcg.com/forum/viewtopic.php?f=3&t=2586
html producer:

Implemented a custom version of window.requestAnimationFrame which will follow the pace of the channel, for perfectly smooth animations.
No longer manually interlaces frames, to allow for mixer fill transforms without artifacts.
Now uses CEF3 event loop to avoid 100% CPU core usage.
Renamed invoke_on_enter_frame to invoke_requested_animation_frames