title: npm install without symlinks option not working
body: <p>I setup a development environment with Windows 8 and Ubuntu as a virtual machine. For that I use VirtualBox. </p>
  
  <p>I also manage to create a shared folder in VirtualBox. </p>
  
  <p>In this shared folder I try to start a project with ember-generator of Yeoman.</p>
  
  <pre><code>yo ember --skip-install --karma
  npm install --no-bin-links
  </code></pre>
  
  <p>For installing modules NPM I use the option "--no-bin-links" not to create symbolic links. Unfortunately, I still have errors creations symbolic links ... Is what I use although this option ? There he has a bug ?</p>