add empty custom.js/css

With FileFindHandler, these will be useful for small user overrides of css/js.

IPython/frontend/html/notebook/static/css/custom.css

@@ -0,0 +1,7
+/*
+Placeholder for custom user CSS
+
+mainly to be overridden in profile/static/css/custom.css
+
+This will always be an empty file in IPython
+*/
  No newline at end of file

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

@@ -0,0 +1,7
+/*
+Placeholder for custom user javascript
+
+mainly to be overridden in profile/static/js/custom.js
+
+This will always be an empty file in IPython
+*/

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

@@ -12,6 +12,8
     <link rel="stylesheet" href="{{static_url("css/page.css") }}" type="text/css"/>
     {% block stylesheet %}
     {% end %}
+    <link rel="stylesheet" href="{{ static_url("css/custom.css") }}" type="text/css" />
+
 
     {% block meta %}
     {% end %}
@@ -53,6 +55,8
 {% block script %}
 {% end %}
 
+<script src="{{static_url("js/custom.js") }}" type="text/javascript" charset="utf-8"></script>
+
 </body>
 
 </html>