config() refactor loadesr to webpack 2, see details
config() refactor loadesr to webpack 2, see details

https://webpack.js.org/guides/migrating/#module-loaders-is-now-module-rules

- loaders has been renamed to rules
- except for babel-loader
- preLoaders now use `enforce: 'pre'`
- extract-text-webpack-plugin:
- fallbackloader => fallback
- moved each loader to its own object
- move `postcss` options into postcss-loader options

bbenne10/eim_physical_activity_visualization,bbenne10/eim_physical_activity_visualization,bbenne10/eim_physical_activity_visualization