add confighooks

.platform/confighooks/postdeploy/99_kill_default_nginx.sh

@@ -0,0 +1,4 @@
+#!/bin/bash -xe
+rm -f /etc/nginx/conf.d/00_elastic_beanstalk_proxy.conf
+service nginx stop
+service nginx start

.platform/confighooks/predeploy/00_build.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+echo primsa migrate
+npm run migrate
+
+echo build with npm
+npm run build