Comply with lack of ES6 compliance in Google V8 dated specifications in node.js and downgrade to ES5 standards, and [our current styleguide enforcement](https://github.com/OpenUserJs/OpenUserJS.org/commit/0263c797d323cdf76be9cd6f11093903ea250b69#diff-ba2dc84c4bcbe54f368b6c7d3bc1b13eR39)

Applies to #189