webpack basic babel setup

webpack.config.js

module.exports = {
  entry: './src/js/entry.js',
  output: {
    filename: 'dist/bundle.js'
  },
  module: {
    preLoaders: [{
      test: /\.jsx?$/,
      exclude: /(node_modules|bower_components)/,
      loader: 'source-map'
    }],
    loaders: [{
      test: /\.scss$/,
      include: /src/,
      loaders: [
        'style',
        'css',
        'autoprefixer?browsers=last 3 versions',
        'sass?outputStyle=expanded'
      ]
    }, {
      test: /\.(jpe?g|png|gif|svg)$/i,
      loaders: [
        'url?limit=8192',
        'img'
      ]
    }, {
      test: /\.jsx?$/,
      exclude: /(node_modules|bower_components)/,
      loaders: [
        'react-hot',
        'babel?stage=0'
      ]
    }]
  }

};