title: Add UINavigationController to UIView?
body: <p>I would like to load an UINavigationController inside an UIView (SideView) - do i need a ContainerView? </p>
  
  <p>Ill tried with:</p>
  
  <pre><code>    let sideRoot = UIStoryboard(name: "Main", bundle: nil).instantiateViewControllerWithIdentifier("sideRoot") as! SideRootViewController
      let navController = UINavigationController(rootViewController: sideRoot)
      sideView.addSubview(navController.view) // sideView is a UIView
  </code></pre>
  
  <p>But ill only see the NavigationBar, but no content. </p>
  
  <p>Do i need an ContainerView? Or is it possible to add a (non fullscreen) UINavigationController? </p>