title: How to set custom view for UIBarButtonItem?
body: <p>I am trying to put a label in a UIBarButtonItem. Here is my viewDidLoad method:</p>
  
  <pre><code>characterCountLabel = [[UILabel alloc] init];
  characterCountLabel.text = @"HELLO";
  charCountButton = [[UIBarButtonItem alloc]initWithCustomView:characterCountLabel];
  </code></pre>
  
  <p>Everything is hooked up properly in IB. Why is the label not appearing inside of my UIBarButtonItem?</p>