title: how to end cocos2d game and remove childs?
body: <p>I am writing as follows  </p>
  
  <pre><code>  [self removeAllChildrenWithCleanup:YES];
    [[CCDirector sharedDirector] end];
  </code></pre>
  
  <p>the first line will remove all children, and will show blank screen, but yet at back end it works, so I used second line, but as I do use second line, it shows backgroud (ccspirit) and last kids again, </p>
  
  <p>what should I do ?</p>
  
  <p>I want to end current game and go to a method in AppDelegate for starting new game, what should I do, it is cocos2d game, </p>