Initial updates to convert document indexing app to new registry and icon system

urls.py

@@ -21,7 +21,7 @@ urlpatterns = patterns('',
     (r'^user_management/', include('user_management.urls')),
     (r'^metadata/', include('metadata.urls')),
     (r'^linking/', include('linking.urls')),
-    #(r'^document_indexing/', include('document_indexing.urls')),
+    (r'^document_indexing/', include('document_indexing.urls')),
     (r'^history/', include('history.urls')),
     (r'^converter/', include('converter.urls')),
     #(r'^sources/', include('sources.urls')),