pkh

/**
    Helpful method to dismiss ALL view controllers presented on top of a 
    root view/navigation controller.
    
    This method is useful if you have a variable number of view controllers
    that you'd need to dimiss to return to a base view. Used for my purposes 
    from the AppDelegate class during the process of handling the opening of
    a URL scheme.
    
    This method also relies on implementing a category on UIViewController