iTween: RotateTo Counter Clockwise below 0 (negatives)

Hello,

I have tried everything I can think of and it appears it might not be supported. Does anyone know if it's possible to rotate an object Counter Clockwise from a position of y at 90 to -90? This would turn it counter clockwise 180 degrees. My problem I am having is when I pass this, it is changing the angle of -90 to 270, which makes it turn clockwise (90 to 270, not 90 to -90).

This is really causing major problems. I would have to assume this is a feature many tried doing before so maybe I am just missing something? I've purchased all their examples and even the helper class, but can't seem to find any solution =/.

// The following is rotating clockwise even though the "-" should tell it to go counter iTween.RotateTo(gameObject, iTween.Hash("y", -90, "time", 2f, "delay", 0, "oncomplete", "RC"));

Any help is appreciated!

Anthony

rotateBy seems to be what I need, thanks to Fulf for pointing it out in the IRC