Ionic ES6 Webpack config

This is an example of a webpack config file that can be used with ionic instead of the default gulp build process. Allows using ES6.

Suggested angular app structure:

/app
  /assets
  /components
  /common
  app.js (entry point)
  app.scss
  app.onrun.js
  app.html
/www
  index.html (auto-generated by webpack)
  bundle.js (auto-generated by webpack)