title: UISearchController inside UISplitView with UINavigationController
body: <p>So I'm using this project as my example of the issue I'm having:
  <a href="https://github.com/ioscreator/ioscreator/tree/master/IOS8SwiftAddSearchTableViewTutorial" rel="nofollow">https://github.com/ioscreator/ioscreator/tree/master/IOS8SwiftAddSearchTableViewTutorial</a></p>
  
  <p>The two changes I make are #1:
  make it a universal app</p>
  
  <p>#2 drag a UISplitview controller into Interface Builder and set it as the root view controller with the existing UINavigationController assigned as the detail view segue</p>
  
  <p>Load it on the iPad in portrait and everything is fine because it is only showing one column. If you turn it to landscape though and try again you'll see that the searchbar position is now wrong. I've seen several other related issues that mentioned setting edgesForExtendedLayout = UIRectEdge.None but that appears to be a different issue than this. Has anybody else run into this or am I doing something wrong?</p>