title: UITableView separator line disappears when selecting cells in iOS7
body: <p>In my tableView I set a separator line between cells. I am allowing selection of multiple cells. Here's my code for setting selected cell background color:</p>
  
  <pre><code>UIView *cellBackgroundColorView = [[UIView alloc] initWithFrame:cell.frame];
  [cellBackgroundColorView setBackgroundColor:[UIColor darkGray]];
  [cell setSelectedBackgroundView:cellBackgroundColorView];
  </code></pre>
  
  <p>The problem is that if two adjacent cells are selected, there is no separator line between them in iOS7, while there is (as expected) in iOS6.</p>
  
  <p>I even tried setting <code>cellBackgroundColorView</code>'s frame height to that of <code>cell.frame - 1.0</code>, but that doesn't work either.</p>
  
  <p>Any ideas?</p>