Add registry and cleanup files

apps/metadata/cleanup.py

@@ -0,0 +1,8 @@
+from __future__ import absolute_import
+
+from .models import MetadataType, MetadataSet
+
+
+def cleanup():
+    MetadataType.objects.all().delete()
+    MetadataSet.objects.all().delete()

apps/metadata/registry.py

@@ -0,0 +1,20 @@
+from __future__ import absolute_import
+
+from .cleanup import cleanup
+
+
+bootstrap_models = [
+    {
+        'name': 'metadatatype',
+    },
+    {
+        'name': 'metadataset',
+    },
+    {
+        'name': 'metadatasetitem',
+    },
+    {
+        'name': 'documenttypedefaults',
+    },
+]
+cleanup_functions = [cleanup]