title: Add Carriage Return to NSString
body: <p>I've made an app which sends data to an SQL database. The data is send trough an UITextView which has multiple lines.</p>
  <p>Normally Windows sees an enter(line break) as the Hexadecimal 0D0A.<br />
  0D = Carriage Return<br />
  0A = Line Feed</p>
  <p>Now the app only sends the 0A hexadecimal Line feed. Not the 0D carriage return. How do I get the 0A (line feed) replaced by 0D0A(carriage return, line feed)?</p>