add 'Close and halt' in notebook filemenu

IPython/frontend/html/notebook/static/js/menubar.js

@@ -68,6 +68,10 b' var IPython = (function (IPython) {'
         this.element.find('button#print_notebook').click(function () {
             IPython.print_widget.print_notebook();
         });
+        this.element.find('#kill_and_exit').click(function () {
+            IPython.notebook.kernel.kill();
+            setTimeout(function(){window.close();}, 200);
+        });
         // Edit
         this.element.find('#cut_cell').click(function () {
             IPython.notebook.cut_cell();

IPython/frontend/html/notebook/templates/notebook.html

@@ -65,6 +65,8 b' data-notebook-id={{notebook_id}}'
                 </li>
                 <hr/>
                 <li id="print_notebook"><a href="/{{notebook_id}}/print" target="_blank">Print View</a></li>
+                <hr/>
+                <li id="kill_and_exit"><a href="#" >Close and halt</a></li>
             </ul>
         </li>
         <li><a href="#">Edit</a>