title: Grouped UITableView with shadow
body: <p>I'm trying to add a shadow behind my grouped UITableView with a custom background. It's hard. I fail. I've been experimenting with the cell layer shadow parameters, but however I do it, the shadow ends up covering another cell on one side. I just want the shadow to appear evenly outside of the outline of each section in the tableview.</p>
  
  <p>If anyone has ideas on how to solve this the easiest way, it would be much appreciated!</p>