This template comes with browserify, babelify and babel-preset-es2015. Run
npm install to download the dependencies.
Add your ES6 code to src/app.js. You can build it manually by running
npm run bundle or it will run automatically due to the
before_prepare hook. I added the hook in the
scripts directory. Either approach will bundle
www/js/bundle.js which then gets copied into your platform specific directories on