title: UITableViewCell Selected Background Color on Multiple Selection
body: <pre><code>// Doesn't work
  cell.selectionStyle = .Blue
  //Works when the selection is not multiple, if it's multiple with each selection the previous one disappear...
  let cellBGView = UIView()
  cellBGView.backgroundColor = UIColor(red: 0, green: 0, blue: 200, alpha: 0.4)
  cell.selectedBackgroundView = cellBGView
  </code></pre>
  
  <p>Any answer how to set background color of the cells which are selected?</p>