title: Storyboard-set iOS 7 Status Bar not shown in right style
body: <p>I have two Scenes in a Storyboard; a dark one and a light one.<br>
  Set to <code>Default</code> in the Simulated metrics' Status Bar section, the light scene's bar is dark and works correctly. The dark scene's is set the same way to <code>Light Content</code> style but it doesn't change.<br>
  No mention of the bar anywhere in the code itself, what's wrong?</p>