update notebook template to prefer offline mathjax

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

@@ -10,12 +10,14 b''
 <!--     <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-1.8.14.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> -->
+    <!-- <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>
     <script type="text/javascript">
     if (typeof MathJax == 'undefined') {
-        console.log("Trying to load local copy of MathJax");
-        document.write(unescape("%3Cscript type='text/javascript' src='static/mathjax/MathJax.js%3Fconfig=TeX-AMS_HTML' charset='utf-8'%3E%3C/script%3E"));
+        console.log("No local MathJax, loading from CDN");
+        document.write(unescape("%3Cscript type='text/javascript' src='http://cdn.mathjax.org/mathjax/latest/MathJax.js%3Fconfig=TeX-AMS_HTML' charset='utf-8'%3E%3C/script%3E"));
+    }else{
+        console.log("Using local MathJax");
     }
     </script>