Add registry and cleanup files

apps/document_indexing/registry.py

@@ -0,0 +1,14 @@
+from __future__ import absolute_import
+
+from .cleanup import cleanup
+
+bootstrap_models = [
+    {
+        'name': 'index',
+    },
+    {
+        'name': 'indextemplatenode',
+        'sanitize': False,
+    }
+]
+cleanup_functions = [cleanup]