re-fix cluster list

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

@@ -14,8 +14,6 b''
     <link rel="stylesheet" href="{{static_url("jquery/css/themes/base/jquery-ui.min.css") }}" type="text/css" />
     <link rel="stylesheet" href="{{static_url("css/boilerplate.css") }}" type="text/css" />
     <link rel="stylesheet" href="{{static_url("css/page.css") }}" type="text/css"/>
-    {% block stylesheet %}
-    {% endblock %}
     {% block lesscss %}
         {% if use_less %}
             <link rel="stylesheet/less" href="{{ static_url("less/style.less") }}" type="text/css" />
@@ -23,6 +21,8 b''
             <link rel="stylesheet" href="{{ static_url("css/style.min.css") }}" type="text/css"/>
         {% endif %}
     {% endblock lesscss%}
+    {% block stylesheet %}
+    {% endblock %}
     <link rel="stylesheet" href="{{ static_url("css/custom.css") }}" type="text/css" />