Updating to use a setup admin user

docker-compose.yml

@@ -17,6 +17,8 @@ services:
       - "redis"
     environment:
       setup_done: "false"
+      setup_admin_user: "${setup_admin_user}"
+      setup_admin_password: "${setup_admin_password}"
       db_uri: "postgres://postgres:${POSTGRES_PASSWORD}@db/postgres"
       WEB2PY_PASSWORD: admin
       WEB2PY_ADMIN_SECURITY_BYPASS: "true"