title: Setting the titleLabel.font property of a of a UIButton not working
body: <p>In currently working with iOS 7 and I an attempting to increase the font size of the titleLabel of my UIButton. I am doing it like this,</p>
  
  <pre><code>[[_centerButton titleLabel] setFont:[UIFont boldSystemFontOfSize:28.0]];
  </code></pre>
  
  <p>However this does not do anything. Every time I compile with a different size the font always stays the same. Even when I completely delete that line the font stays the same. Apparently it is sticking to the default size.</p>
  
  <p>How can I increase the font size of my UIButton title?</p>