title: AllVisible splitView on iPhone iOS 8
body: <p>A heard that is possible to show split view on iPhone in landscape mode on iOS 8? Is it true?</p>
  
  <p>I tried:</p>
  
  <pre><code>let splitViewController = self.window!.rootViewController as UISplitViewController
  splitViewController.preferredDisplayMode = UISplitViewControllerDisplayMode.AllVisible
  splitViewController.preferredPrimaryColumnWidthFraction = 0.3
  </code></pre>
  
  <p>Everythings works great but only on iPad. On iPhone I have still full width masterView.</p>