title: Add items to NavigationBar (Not using UINavigationController)
body: <p>I have a UIViewController with a UITableView in it, and also added a UINavigationBar.
  How can I add and "edit" button and a "+" button in that bar programmatically?
  (I have tried using IB, but the title is always replaced, and not other items are added)
  I am not using a UINavigationController. is my UIViewController standing alone.</p>
  
  <p>This is what I have tried without success:</p>
  
  <pre><code>UIBarButtonItem *barButton = 
      [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonItemStyleBordered 
                                                    target:nil
                                                    action:nil];
  UINavigationItem *editItem = [[UINavigationItem alloc] initWithTitle:@"Title"];
  [editItem setLeftBarButtonItem:barButton animated:YES];
  [navigationBar setItems:[NSArray arrayWithObject:editItem] animated:YES];
  </code></pre>