add module reload support

reload.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+# bash safe mode. look at `set --help` to see what these are doing
+set -euxo pipefail 
+
+cd $(dirname $0)
+source .env
+./setup.sh
+
+# Be sure to use `exec` so that termination signals reach the python process,
+# or handle forwarding termination signals manually
+exec $PYTHON models.py $@