GTweenTimeline - gotoAndPlay() not working properly if used before animation has fully played.

Hi,

I'm using GTween v2.01. I've created a GTweenTimeline and added several tweens to it.

If I use "paused = false" to start the animation, everything goes fine. But if I use "gotoAndPlay()" to start the animation from x seconds (eg: timeLine.gotoAndPlay(5);), The tween positions gets all messed up.

The call to "gotoAndPlay()" works fine after the animation has played completely, but not if called when the animation hasn't played the first time.

I have attached a small test. You can try the different behaviour by starting the animation with either "timeLine.paused = false;" or "timeLine.gotoAndPlay(playFrom);"

[gtween_test.zip](https://github.com/gskinner/GTween/files/902477/gtween_test.zip)

After debugging, I've found that if I change GTweenTimeline.as, line 115 from:
if (rev) {
to:
if (!rev) {
The animation works perfectly.