tweaks for react+webpack project

gistfile1.txt

window.$ = window.jQuery = require("jquery");
$.fn.progress = require('semantic-ui/dist/components/progress');

plugins: options.plugins.concat([
    new webpack.ProvidePlugin({
      // make fetch available
      fetch: 'exports?self.fetch!whatwg-fetch',
      $: "jquery",
      jQuery: "jquery",
    }),
])