title: How to import less files when HtmlWebpackPlugin is used
body: <p>Presently, I am using <code>HtmlWebpackPlugin</code> and hot reload for development  to generate an html file that includes the javascript bundle. </p>
  
  <p>This works fine with the following webpack configuration:</p>
  
  <pre><code>const HtmlWebpackPlugin = require('html-webpack-plugin');
  const webpack = require('webpack');
  const path = require('path')
  const { NoErrorsPlugin, HotModuleReplacementPlugin } = webpack;
  const { OccurrenceOrderPlugin } = webpack.optimize;
  
  module.exports = {
      entry : {
          app: [
              'webpack-hot-middleware/client',
              './src/index.tsx',
          ],
      },  
      output: {
          filename: "bundle.js",
          path: path.join(__dirname, 'build'),
          publicPath: '/static/'
      },
  
      devtool: "eval",
  
      resolve: {
          // Add '.ts' and '.tsx' as resolvable extensions.
          extensions: ["", ".webpack.js", ".web.js", ".ts", ".tsx", ".js"]
      },
  
      module: {
          loaders: [
              // All files with a '.ts' or '.tsx' extension will be handled by 'awesome-typescript-loader'.
              { test: /\.tsx?$/, loaders: ['react-hot-loader', 'awesome-typescript-loader'] }
          ],
  
          preLoaders: [
              // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
              { test: /\.js$/, loader: "source-map-loader" }
          ]
      },
  
      plugins: [
          new OccurrenceOrderPlugin(),
          new HotModuleReplacementPlugin(),
          new NoErrorsPlugin(),
          new HtmlWebpackPlugin({
              filename: 'index.html',
              template: 'src/templates/index.ejs',
              minify: false,
              excludeChunks: ['static'],
          }),
      ],
  };
  </code></pre>
  
  <p>However, it does not include the blueprintjs stylesheet. How should I configure that? I tried <code>less-loader</code> but it did not import anything.</p>