Fixes an issue with specs after showing a UIAlertView
Fixes an issue with specs after showing a UIAlertView

Turns out iOS 8 is changing the root UIWindow class to _UIAlertControllerShimPresenterWindow instead of just UIWindow after an app shows a UIAlertView. Boooo.

andersennl/BubbleWrap,earthrid/BubbleWrap,hboon/BubbleWrap,fandor/BubbleWrap,dam13n/BubbleWrap