es6 standard in auth lib

Author: Sachin Maheshwari

package.json

@@ -11,7 +11,7 @@
         "npm": "5"
     },
     "scripts": {
-        "start": "node src/app.js",
+        "start": "node -r esm src/app.js",
         "serve": "./node_modules/.bin/concurrently \"npm run start:be\" \"npm run start:fe\"",
         "start:be": "nodemon src/app.js ",
         "start:fe": "gulp build:watch",
@@ -53,6 +53,7 @@
         "cors": "^2.8.4",
         "debug": "~2.6.3",
         "dynamoose": "^1.1.0",
+	"esm": "^3.2.25",
         "express": "^4.15.4",
         "express-jwt": "^5.3.0",
         "express-session": "^1.15.5",