won't work with orientation change

[farfromrefug]

I just wanted to let you know that most transitions wont work with orientation change.
The reason is quite simple.
you set the animations rect during int. This is wrong. You should init the animation just before using it.
A simple example of failure

1. rotate your device to landscape
2. open a controller with SWIPE
3. rotate your device to portrait
4. popViewController

See the animation not working (which is totally normal!)

I will rewrite transitions for it to work. Let me know if you want a PR