title: Center the text in a UITextView, vertically and horizontally
body: <p>I have a grouped table view with one cell. In this cell I'm putting a <code>UITextView</code> in <code>cellForRowAtIndexPath:</code>, and I instantly make this first Responder.</p>
  
  <p>My problem is: When I start typing, the text is left-justified, not centered horizontally and vertically as I want. This is on iOS 7.</p>
  
  <p>How can I center the text?</p>