title: Cursor not showing up in UITextView
body: <p>Can anyone think of a reason that the blinking cursor would not show up in a <code>UITextView</code>? I have a custom control that is just a subclass of <code>UIView</code> and it has a <code>UITextView</code> in it, but the cursor doesn't appear when it gets focus. The keyboard appears, and the text appears as you type, but there is no cursor, and I can't figure out why.</p>
  
  <p>Any thoughts?...</p>