Pagekit crap https://github.com/pagekit/extension-hello
npm install -D vue-loader vue-template-compiler css-loader webpack
vuejs/vue-loader#409 since I got some error Need to add another Vue thing too.
Got a webpack config from https://vue-loader.vuejs.org/guide/#manual-setup
How to detect dev / prod mode? webpack/webpack#6460 (comment)
Trying to load css npm install --save-dev css-loader
https://medium.com/a-beginners-guide-for-webpack-2/handling-images-e1a2a2c28f8d
Linter https://vue-loader.vuejs.org/guide/linting.html#eslinte