title: Remove UIVIew from SuperView with Animation
body: <p>I can animate the addition of a UIView to my app, it looks very pretty so thank you apple.</p>
  
  <p>However, how do I animate the removal of this view from the super view? </p>
  
  <p>I'm using:</p>
  
  <pre><code>CATransition *animation = [CATransition animation];
  [animation setDuration:1];
  [animation setType:kCATransitionReveal];
  [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn]];
  [[myview layer] addAnimation:animation forKey:kCATransitionReveal];
  </code></pre>
  
  <p>to animate the "in" transition ... how do you animate the "out" transition????</p>