title: Letter box in iPhone5
body: <p>It works like magic to get rid of the letter box in iPhone5. Just put in the picture
  Default-568h@2x.png.
  And the app will open with the NavBar in the top in iPhone5 instead of in a letter box.</p>
  
  <p>But how to reverse that?? If I remove the Default-568h@2x.png it still opens unboxed.</p>
  
  <p>Is it possible to go back to the previous letter boxed version?</p>
  
  <p>Or in a new project using Xcode 4.5 to build for letter boxed apps?</p>