title: Need to disable minify of CSS but not JS using UglifyJsPlugin webpack
body: <p>I have this setup in my webpack.config for loading my css files. I need to disable minify on my css files only.</p>
  
  <pre><code>{
     test: /\.sass$/,
     //loaders: ['style', 'css', 'sass']
     loader: ExtractTextPlugin.extract('style', 'css-loader!less-loader')
  }
  </code></pre>
  
  <p>in my plugins i have:</p>
  
  <pre><code>new webpack.optimize.UglifyJsPlugin({
     exclude: [/file\.css$/],
     minimize: true
  })
  </code></pre>
  
  <p>Based on what I have been reading mixing UglifyJsPlugin and css-loader together is what causes the minifying of CSS. The problem is there are multiple bugs where it outputs invalid CSS. </p>
  
  <p>it is still minifying my css despite these various attempts to disable for css.</p>
  
  <p>How can disable minify for css but still minify my js files?</p>