If I create a new Timeline set to use frames for timing eg. var tl = new TimelineMax({ useFrames: true });   How do I set the frame rate of the timeline?   The only example I can find is for setting the frame rate is for a tween, rather than a timeline, and the ticker property doesn't exist for a timeline.   TweenLite.ticker.fps(60);   I am migrating some flash animations to JS and I need a frame rate of 50.   is it possible to set a frame rate fo