title: "style" field in package.json
body: <p>I noticed that <a href="https://github.com/twbs/bootstrap/blob/master/package.json#L19">Bootstrap</a> and <a href="https://github.com/necolas/normalize.css/blob/master/package.json#L5">Normalize.css</a> both have a "style" field in their package.json.</p>
  
  <p>Why do they have this? If I had to guess, it's to allow users to import the defined stylesheet as easily as doing <code>require('bootstrap')</code>, but that doesn't seem to be the case.</p>