title: access storyboard and nested UIViewControllers in appDelegate
body: <p>How can I access storyboard as well as it's UIViewControllers inside the appDelegate. </p>
  
  <pre><code>- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
  {
  
      return YES;
  }
  </code></pre>