title: How to use webpack-dev-server multiple entries point
body: <p>I would like to use the webpack-dev-server to host multiple entry points at one PORT. My current config is below: </p>
  
  <pre class="lang-js prettyprint-override"><code>entry: {
      //Application specific code.
      main: [
          `webpack-dev-server/client?http://${config.HOST}:${config.PORT}`, 
          'webpack/hot/only-dev-server',
          './app/base.js',
          './app/main.js'
      ],
  
      login: [
          `webpack-dev-server/client?http://${config.HOST}:${config.PORT}`, 
          'webpack/hot/only-dev-server',
          './app/base.js',
          './app/login.js'
      ],
  },
  output: {
      path: assetsPath,
      publicPath: `http://${config.HOST}:${config.PORT}/public/dist/`,
      chunkFilename: "[name].js",
      filename: '[name].js',
  },
  </code></pre>
  
  <p>But seems like it doesn't work for me right now. Any help?</p>