title: UIButton under hidden UILabel won't work
body: <p>I have a large <code>UILabel</code> which I am using to cover a bunch of buttons while I do something else.<br>
  All I have set initially is <code>myLabel.hidden = YES;</code> so you can't see the <code>UILabel</code> but the <code>UIButtons</code> (below it) won't work anymore.</p>
  
  <p>Is there another setting for the <code>UILabel</code> I can use to allow touches to go "through it" when it is hidden? Thanks.</p>