title: Finding stray IBOutlets
body: <p>Is there a good way to detect stray IBOutlets prior to running?</p>
  
  <p>Like if I added this code:</p>
  
  <pre><code>@interface MyViewController()
  @property (nonatomic, weak) IBOutlet UIView *magicView;
  @end
  </code></pre>
  
  <p>Then I connected it in Interface Builder. Some time later, I remove the outlet but forget to remove it in, say, my iPad storyboard. When I run the app, it'll crash with a KVO error at runtime.</p>
  
  <p>IB shows a warning on them, but you need to click each view controller and search for yellow exclamation points. I'd rather just see a list, compiler warnings, something more prominent.</p>