title: Setting UIApplication statusBarHidden to YES does not work in iOS 7
body: <p>I've been using</p>
  
  <pre><code>[UIApplication sharedApplication].statusBarHidden = YES; 
  </code></pre>
  
  <p>to hide the status bar when users enter specific UIViewControllers in iOS 6 and it worked great. In iOS 7 however it still shows a translucent overlay.</p>