title: Tab Bar covers TableView cells in iOS7
body: <p>I have a custom tableViewController that I'm adding to a TabBarController with</p>
  
  <pre><code>self.tabBarController.viewControllers = [NSArray arrayWithObjects:someOtherViewController, customTableViewController, nil];
  self.tabBarController.selectedIndex = 1;
  </code></pre>
  
  <p>The issue I'm having is that the last 1.5 tableViewCells are being covered by the tab bar at the bottom of the screen on an iPhone 4 running iOS7.  When I use the iOS Simulator - iPhone Retina (4-inch) / iOS 7.0 the issue still exists.</p>
  
  <p>What is the correct way to make the tableView line up with the top of the tabBar at the bottom of the screen without using 'magic numbers'?</p>