fix lint and prev commit errors

package.json

@@ -7,7 +7,7 @@
     "dev": "NODE_ENV=development nodemon -w src --exec \"babel-node src\"",
     "build": "NODE_ENV=production npx babel src -d dist",
     "start": "node dist",
-    "lint": "standard \"src/**/*.js\" \"test/**/*/js\"",
+    "lint": "standard \"src/**/*.js\" \"test/**/*.js\"",
     "test-watch": "ava --watch",
     "test": "ava --verbose"
   },
@@ -33,7 +33,7 @@
     "graphql": "^0.13.2",
     "morgan": "^1.8.0",
     "mz": "^2.7.0",
-    "node-fetch": "^2.2.0",
+    "node-fetch": "^2.3.0",
     "object-hash": "^1.3.0",
     "ramda": "^0.25.0",
     "resource-router-middleware": "^0.6.0"
@@ -42,6 +42,7 @@
     "@babel/cli": "^7.1.2",
     "@babel/core": "^7.1.2",
     "@babel/node": "^7.0.0",
+    "@babel/polyfill": "^7.0.0",
     "@babel/preset-env": "^7.1.0",
     "@babel/register": "^7.0.0",
     "ava": "1.0.0-beta.8",
@@ -59,7 +60,8 @@
       "test/**/*.js"
     ],
     "require": [
-      "@babel/register"
+      "@babel/register",
+      "@babel/polyfill"
     ]
   },
   "bugs": {