Add registry and cleanup files

apps/linking/cleanup.py

@@ -0,0 +1,7 @@
+from __future__ import absolute_import
+
+
+def cleanup():
+    from .models import SmartLink
+
+    SmartLink.objects.all().delete()

apps/linking/registry.py

@@ -0,0 +1,15 @@
+from __future__ import absolute_import
+
+from .cleanup import cleanup
+
+
+bootstrap_models = [
+    {
+        'name': 'smartlink',
+    },
+    {
+        'name': 'smartlinkcondition',
+    }
+]
+
+cleanup_functions = [cleanup]