title: Navigation title not showing on view with tab view controller, but "back" navigation works
body: <p>I'm relatively new to iOS Objective-C development, and I've come across a problem that I can't find a solution to. </p>
  
  <p>I have a <code>Table View Controller</code>, with two prototype cells on it, which populate fine. This <code>Table View Controller</code> is one of three <code>Tab Views</code>, and the <code>View</code> that sends to the <code>Tab Views</code> has a <code>Navigation Controller</code>. This means that the views within the <code>Tab Views</code> also have a <code>Navigation</code> bar. The bar works fine, in terms of the "back" button working as expected, and the bar being in position. However, (at least on the List View) the <code>Navigation Bar</code> isn't fully recognised - it's title doesn't appear, and the table cells start directly below the status bar, rather than below the navigation bar.</p>
  
  <p>Here's a couple of screenshots showing the problem:
  <img src="https://i.stack.imgur.com/jXYSR.png" alt="what appears in Xcode (what I expect to happen)">
  what appears in Xcode (what I expect to happen)
  <img src="https://i.stack.imgur.com/hXJuN.png" alt="what actually appears on my testing device (iPhone 4, iOS 7.0.4)">
  And then on the device, this is what actually appears - the Back button in place and working fine, but no title field, and the table cells start too high.</p>
  
  <p>I've tried adding <code>Navigation Bar</code>'s and <code>Navigation Items</code>, and while adding a <code>Navigation Item</code> allows me to put a title on in Xcode, it still doesn't appear on the device in testing. I also tried to add another <code>Navigation Controller</code> just before this view, but that didn't resolve the issue either, and it caused navigation problems further down in the heirachy.</p>
  
  <p>Hope I've been clear enough, please say if I need to post more information - I'm relatively new to Xcode and so not sure what exactly is applicable and what isn't. Thanks!</p>