Refactor ES6 import and any ES2015 feature not supported by Argon (node.js v4.4.4.)

[kn9ts]

Most features I have used are supported by Argon (node v4.4.4) but some are not. Thus am using babel-node for development and transforming the code base to ES5 for production in a ./dist directory. I think this is pretty ugly especially when it comes to debugging. Since you are not debugging the same code you wrote.

I prefer Project mulla working with Argon for now and later on to the next LTS.

Example of such pieces in ./index.js in the codebase:

import './environment';
import express from 'express';
import path from 'path';