Objective-C UIView subclass that flips like a double-sided coin between two views.
##Usage Create an IBOutlet with the class of CMSCoinView in your header
@property (nonatomic, retain) IBOutlet CMSCoinView *coinView;
Then create your two views and set them on the coin view.
[coinView setPrimaryView: primaryView.view];
[coinView setSecondaryView: profileView];
##Optionally
[coinView setSpinTime:1.0];