title: How to add header comments to webpack uglified JavaScript?
body: <p>I am currently using the following webpack.config.js:</p>
  
  <pre><code>var webpack = require('webpack');
  
  module.exports = {
    entry: __dirname + "/src/index.js",
      output: {
        path: __dirname,
        filename: "index.js"
      },
    module: {
      loaders: [
        {
          test: /\.js$/,
          loader: 'babel',
          exclude: '/node_modules/',
          query: {
            presets: ['latest']
          }
        }
      ]
    },
    plugins: [ new webpack.optimize.UglifyJsPlugin({minimize: true}) ]
  }
  </code></pre>
  
  <p>This works exactly how I want it to. But now I want to add some comments with project info to the output file, on top of the one line with uglified code. How do I do this?</p>