Updating jQuery to 1.6.2 and jQuery UI to 1.8.14.

I have also added a focus.html files for testing focus related
events.

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

@@ -6,9 +6,9 @@
 
     <title>IPython Notebook</title>
 
-    <link rel="stylesheet" href="static/jquery/css/themes/aristo/jquery-wijmo.css" type="text/css" />
+    <!-- <link rel="stylesheet" href="static/jquery/css/themes/aristo/jquery-wijmo.css" type="text/css" /> -->
     <!-- <link rel="stylesheet" href="static/jquery/css/themes/rocket/jquery-wijmo.css" type="text/css" /> -->
-    <!-- <link rel="stylesheet" href="static/jquery/css/themes/smoothness/jquery-ui-1.8.11.custom.css" type="text/css" /> -->
+    <link rel="stylesheet" href="static/jquery/css/themes/smoothness/jquery-ui-1.8.14.custom.css" type="text/css" />
 
     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML" charset="utf-8"></script>
     <!-- <script type='text/javascript' src='static/mathjax/MathJax.js?config=TeX-AMS_HTML' charset='utf-8'></script> -->
@@ -49,8 +49,8 @@
 
 </div>
 
-<script src="static/jquery/js/jquery-1.5.1.min.js" type="text/javascript" charset="utf-8"></script>
-<script src="static/jquery/js/jquery-ui-1.8.11.custom.min.js" type="text/javascript" charset="utf-8"></script>
+<script src="static/jquery/js/jquery-1.6.2.min.js" type="text/javascript" charset="utf-8"></script>
+<script src="static/jquery/js/jquery-ui-1.8.14.custom.min.js" type="text/javascript" charset="utf-8"></script>
 <script src="static/jquery/js/jquery.autogrow.js" type="text/javascript" charset="utf-8"></script>
 <script src="static/js/namespace.js" type="text/javascript" charset="utf-8"></script>
 <script src="static/js/utils.js" type="text/javascript" charset="utf-8"></script>