title: Get title of selected tab in UITabBarController
body: <p>I have set the title for all five of my tabs in my AppDelegate file.  I would like to access that title in another view within my application.  I have the code below to output to the log window the selected index of that selected tab but what I'd really like to get is the title for that tab.  I did have a look through the UITabBarController Class Reference and I didn't see anything that would allow me to do this.</p>
  
  <p>What I am trying to avoid is some sort of switch or if...else statement where I hardcode values I have already manually set in another file.</p>
  
  <pre><code>- (void)viewDidLoad {
  [super viewDidLoad];
  
  AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
  NSLog(@"The currently selected tab has an index of: %d", appDelegate.tabBarController.selectedIndex);
  
  }
  </code></pre>
  
  <p>This code works as intended.  It would just be ideal to see the title.</p>