    */
   public required init?(coder aDecoder: NSCoder) {
     super.init(coder: aDecoder)
-    prepare()
   }
   
   /**

    super.init(rootViewController: rootViewController)
    self.leftViewController = leftViewController
    self.rightViewController = rightViewController
    prepare()
  }
  
  open override func transition(to viewController: UIViewController, completion: ((Bool) -> Void)? = nil) {

   */
  public override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
    super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
  }
  
  /**
