title: UITableView first rows are cut-off under top bar
body: <p>I have a <code>UITabBarController</code> with two <code>UITableViews</code>, all were created in the storyboard.</p>
  
  <p>The problem is that in the second tableview the first few lines of the table are under the top bar, this doesn't happens with the first tableview, even if I change the order of the views the first will work perfectly and the second will present the problem, so the one that was working perfectly now presents the same problem because is the second item of the tabbar controller.</p>
  
  <p>I don't have much code to show because I didn't create the tableviews programatically.</p>