title: UITableView Cells separated by dotted lines
body: <p>I'd like to change the separator from a UITableView to a dotted line. All I could find is 
  UITableViewCellSeparatorStyleBlabla... </p>
  
  <p>Can I put something else instead? I'd rather not use images, but if there is no other way...</p>
  
  <p>Thanks!</p>