Merge pull request #1376 from metabase/updated_deploy

update our deployment command in circle.

bin/deploy-webook

+#!/bin/bash
+
+curl -H "Content-Type: application/json" -X POST -d '{"docker_tag":"latest"}' $1

circle.yml

@@ -28,4 +28,4 @@ deployment:
   master:
     branch: master
     commands:
-      - ./deploy/deploy_aws.sh $STACK_ID $APP_ID
+      - ./bin/deploy-webhook $DEPLOY_WEBHOOK