title: Perform a segue with NO animation?
body: <p>Is it possible to perform an iOS segue but with NO animation whatsoever?  I haven't found any documentation indicating that it is, but I'd imagine that given the fact that there's an <code>animated:(BOOL)animated</code> property on practically every method in UIKit there must be some way to accomplish this.</p>
  
  <p>We've got a simply UIViewController setup, and when the user presses a UIButton, I'd like to be able to perform the segue but with absolutely no animation.  Our existing code looks like this:</p>
  
  <pre><code>func buttonPressed(sender: AnyObject?) {
     self.performSegue("MySegue", sender: nil)
  }
  </code></pre>
  
  <p>I haven't been able to find any way of preventing the Segue from animating, though.  Thoughts?</p>