Adjust to sphinx 0.6.2.

Author: Stefan Seefeld

website/www/_templates/layout.html

@@ -78,7 +78,7 @@
     </div>
     <div class="navigation">
       <div class="menu">
-       {{ toctree }}
+       {{ toctree() }}
       </div>
     </div>
     <div class="content">