title: Change navbar title programmatically
body: <p>I'm working with the Xcode Utility template. In rootViewController.m there's a section that sets up the navbar for what's called the FlipSideView:</p>
  
  <p>(snip)</p>
  
  <pre><code>UINavigationItem *navigationItem = [[UINavigationItem alloc] initWithTitle:@"Title"];
  </code></pre>
  
  <p>(snip)</p>
  
  <p>How can you programmatically change the navbar title from within the FlipsideViewController class? I tried:</p>
  
  <pre><code>self.navigationItem.title = @"XXXXXX";
  </code></pre>
  
  <p>w/o success.</p>