title: UIScrollview not recognizing swipe from screen edge
body: <p>I have a <code>UIView</code> containing a <code>UIScrollview</code>. I have set the <code>UIView</code> as the header view of my <code>UITableView</code>. Now my <code>UITableView</code> is 20px narrower than the screen itself but I have seit its header view to fit the screen size.</p>
  
  <p>The problem I am having now is that I cant swipe the <code>UIScrollview</code> coming in from the screens edge on both sides. It will only start paging when I touch inside of the screen.</p>
  
  <p>Is there a way to fix this? 
  Thanks a lot!</p>