Now available as an IIFE, an ES6 module and a CommonJS module

The whole build process has been updated and all dev dependencies have been updated to their latest version.
Methods are unchanged, but the library is now transpiled into different versions:

• IIFE (to be used with a <script> tag)
• CommonJS (for installation through NPM)
• ES6 (basically the raw library in ES6)

I plan to get back to work on this project, there's still a long road ahead !