title: what is searchdisplaycontroller?
body: <p>When I give <code>IBOutlet</code> objects in my ViewController, I could not find out them in InterfaceBuilder to link to the object which are in the view.</p>
  
  <p>After some time it comes automatically...(I have set correctly file owner) There is only one I am seeing that is <strong>searchDisplayController</strong>.</p>
  
  <p>What is it?</p>