(patch) cannot import as es6 module

[cristinecula]

this is undefined when imported as es6 module.

Include detection from umd: https://github.com/umdjs/umd/blob/master/templates/amdWeb.js

This makes importing as es6 module work:

import 'money';
window.fx.convert(...)

Ideally the module should be rewritten to export fx directly, instead of registering to window, but this gets the job done.

import { fx } from 'money'
fx.convert(...)