chore(package): update cors

Author: Awk34

Diff for: templates/app/_package.json

@@ -4,7 +4,6 @@
   "main": "server/index.js",
   "dependencies": {
     "compression": "^1.7.1",
-    "cors": "^2.8.1",
     "core-js": "^2.5.0",
     "express": "^4.13.3",
     "morgan": "^1.9.0",
@@ -115,6 +114,7 @@
     "babel-plugin-transform-class-properties": "^6.6.0",
     "babel-plugin-istanbul": "^4.1.4",
     "babel-preset-env": "^1.6.1",
+    "cors": "^2.8.4",
     "cross-env": "^5.1.1",
     "eslint": "^4.19.1",
     "del": "^3.0.0",