title: KeyboardViewController NSLog IOS 8
body: <p>We can log with NSlog in other view in iOS 8 (Xcode Beta Version).</p>
  
  <p>However, I can't NSLog in keyboard extension in KeyboardViewController. It didn't appear in log. </p>
  
  <p>NSLog(@"viewdidload in keyboard");</p>
  
  <p>I would like to know how to detect/log in real time.</p>