Add registry and cleanup files

apps/dynamic_search/cleanup.py

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

apps/dynamic_search/registry.py

@@ -0,0 +1,6 @@
+from __future__ import absolute_import
+
+from .cleanup import cleanup
+
+
+cleanup_functions = [cleanup]