title: Still getting NODE_ENV console warning from Redux after setting it via webpack
body: <p>I'm getting </p>
  
  <pre><code>You are currently using minified code outside of NODE_ENV === 'production'. This means that you are running a slower development build of Redux. You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify or DefinePlugin for webpack (http://stackoverflow.com/questions/30030031) to ensure you have the correct code for your production build.
  </code></pre>
  
  <p>I tried to fix it by adding following codes to my webpack config. But it didn't work for Redux. However, following codes did fix a similar warning from React.</p>
  
  <pre><code>plugins: [
    ...
    new webpack.DefinePlugin({
      'process.env': {
        'NODE_ENV': '"production"'
      }
    }),
    ...
  </code></pre>
  
  <p>Did I miss anything?</p>