Correct variables for setting.

www/conservancy/apps/blog/views.py

@@ -82,7 +82,7 @@ def custom_index(request, queryset, *args, **kwargs):
 
     return render_to_response('blog/entry_list.html',
                               {"blog_entries": blog_entries, "date_list" : date_list,
-                               "authors" : authors, "tags" : tags })
+                               "authors" : extra_context['authors'], "tags" : extra_context['tags'] })
 
     callable = BlogListView.as_view(**kwargs)
     return callable(request)