Move package to src/ to properly separate what goes into docker image

src/entrypoint.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# Dump all env vars so we can source them in cron jobs
+printenv | sed 's/^\(.*\)$/export \1/g' > /env.sh
+
+# start cron in the foreground
+crontab crontab
+crond -f