title: Black bars showing when running app on iOS 7 (4 inch retina display)
body: <p>We have an <code>iPod</code> app built with base <code>SDK</code> as <code>5.1.</code>
  App has a <code>tabBarController</code> with three tabs and each tab has a <code>UIViewController</code> to load a different view.</p>
  
  <p>The app works fine for <code>iOS 6.1</code> and <code>iOS 7</code> (3.5 inch display) simulator and device but when we run the app on 
  <code>iOS 7</code> (4 inch display simulator) or device we are getting black bars at the top and bottom of the view screen in all three tabs.
  If anyone can suggest reason for this or some feasible solution to this problem, it would be really helpful for us.</p>
  
  <p>Thanks</p>