 
 class Router: NSObject {
     static let FTFlipAnimationDuration = 0.5
-    static let sharedInstance = FTRouter()
+    static let sharedInstance = Router()
     
     var window : UIWindow
     

    //MARK: - Routing
    
    func showInitialViewController() {
        let viewController = UIStoryboard.mainStoryboard.instantiateInitialViewController()!
        self.setWindowRootViewController(viewController, completion: nil)
    }
    
    //MARK: - Utils

            self.window.rootViewController = viewController
            completion?(finished: true)
        }else{
            UIView.transitionFromView(self.window.rootViewController!.view!, toView: viewController.view, duration: Router.FTFlipAnimationDuration, options: UIViewAnimationOptions.TransitionFlipFromLeft) { [unowned self] (finished) -> Void in
                UIView.setAnimationsEnabled(oldState)
                self.window.rootViewController = viewController
                completion?(finished: finished)
