title: AppDelegate for Cocoa app using Storyboards in Xcode 6
body: <p>I have an existing OS X app, and after converting to Storyboards as the main interface, my app delegate is no longer being used.  Before, the MainMenu.xib had an "App Delegate" object, and I could set its class to my app delegate.  However, the Storyboard contains no such object.</p>
  
  <p>How do I get my AppDelegate back and keep storyboards?  I feel like I'm missing something obvious.</p>