I added the possibility to reset UIView transformation

[Ricardo1980]

I added the possibility to reset UIView transformation, useful when you want to restart everything. I use this in a flash card I'm doing.

[sgabello]

Hi Ricardo,

thanks for using UIView-FlipTransition!
However I don't really understand how this change should work.
UIView-FlipTransition is a category that adds only a class method which operates on the 2 views passed as arguments.
This call:

self.layer.transform = CATransform3DIdentity;

has no meaning in this context.

Let me know,
Andrea