title: How can I set the title of non-main-windows in an NSDocument application?
body: <p>I am working on a document-based OSX application, with master-detail style windows. I understand how to open additional windows, to display additional information, by using <code>-makeWindowControllers</code> and adding extra window controllers, but I can't set the title of the new windows. I have tried using <code>-setTitle</code> and <code>-windowTitleForDocumentDisplayName</code> in both <code>Document.m</code> and in my sub-classed window controller class, but I can't get the window title to change.</p>
  
  <p>How do I change the title of non-main-windows, which have a sub-classed window controller, in an NSDocument based application?</p>
  
  <p><strong>EDIT:</strong> I know there are some suggestions on SO about using an IBOutlet to the window to do this, but surely the window controller has a reference to its window anyway, right?</p>