Support es6 modules

[crenshaw-dev]

const autoComplete = require('javascript-autocomplete') works nicely.

It would be nice to use newer syntax, something like import { autoComplete } from 'javascript-autocomplete'.

A hackish solution would be something like this.

module.js:

const autoComplete = require('auto-complete');
export default autoComplete;

my-app.js:

import { autoComplete } from 'javascript-autocomplete/module'

I'm not sure the impact of that setup on bundlers like webpack. But seems like it should be at least functional.