update nodeunit from ^0.9.1 to ^0.11.2

Author: gronke

package.json

@@ -9,14 +9,14 @@
     "express": "^4.16.3"
   },
   "devDependencies": {
-    "nodeunit": "^0.9.1"
+    "nodeunit": "^0.11.2"
   },
   "scripts": {
     "test": "iojs --harmony node_modules/nodeunit/bin/nodeunit"
   },
   "repository": "gronke/es6-express-api",
   "bugs": {
-    "url" : "https://github.com/gronke/es6-express-api/issues"
+    "url": "https://github.com/gronke/es6-express-api/issues"
   },
   "keywords": [
     "es6",