title: Get the number of lines required for UILabel from NSString?
body: <p>How can I get the appropriate number of lines for a UILabel based off the text from an NSString?</p>
  
  <p>I am needing a cell in my UITableView to have a dynamic cell height based off of the UILabel height. That means I need to figure out how tall the UILabel will be from the NSString provided.</p>