title: Missing shadow (hairline) on iOS7 UIToolbar
body: <p>In iOS7, UIToolbar does not appear to have a little line (the shadow) on the top or bottom borders, which makes it difficult to distinguish from the rest of the app. How can I restore the shadow at the bottom of the toolbar when it is at the top of the screen?</p>
  
  <p>EDIT: I should clarify that my toolbar is positioned at the top of the screen. After moving things around I realized that it IS drawing a shadow, but it's on the top, and therefore off-screen. What I want is for the shadow to appear at the bottom like a UINavigationBar.</p>