core: revert to cherrypy for main webserver and use daphne only for app_gw

passbook/app_gw/asgi.py

@@ -0,0 +1,13 @@
+"""
+ASGI entrypoint. Configures Django and then runs the application
+defined in the ASGI_APPLICATION setting.
+"""
+
+import os
+
+import django
+from channels.routing import get_default_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "passbook.root.settings")
+django.setup()
+application = get_default_application()