title: UIScrollView on top of UIView (XIB) and scrollview will not scroll
body: <p>In my xib I created a UIView.</p>
  
  <p>I added a child to that UIView which was a UIScrollView. The scrollView will not scroll. </p>
  
  <p><strong>BUT</strong>
  If I drag the UIScrollView out of the UIView so they are on the same level then it <strong>will scroll</strong> as expected.</p>
  
  <p>So why does my scrollview stop scrolling when <strong>it is inside a UIView on my XIB.</strong></p>
  
  <p>Is this a bug or is there something more I need to do to get the scrollview scrolling while a child of a UIView.</p>
  
  <p>Many Thanks,
  -Code</p>