webpack configuration to work with storybook and apollo-client

webpack.config.js

// load the default config generator.
var genDefaultConfig = require('@kadira/storybook/dist/server/config/defaults/webpack.config.js');

module.exports = function (config, env) {
  var conf = genDefaultConfig(config, env);

  // add es6 support for node_modules
  // config structure is here
  // https://github.com/storybooks/react-storybook/blob/d0fd01054f02e79518d36a6fbb238c24577fef83/dist/server/config/webpack.config.js
  conf.module.loaders[0].exclude = /node_modules\/(?!(apollo-client)\/).*/;

  return conf;
};