title: Bundle with wildcard not working
body: <p>I'm trying to implement MVC's Bundle concept where I want to store a couple of CSS files together. Unfortunately, adding a wildcard doesn't work. Using <code>IncludeDirectory</code> with a wildcard doesn't work either.</p>
  
  <p>There's just an empty space where it should have included my stylesheets.</p>
  
  <p><em>BundleConfig.css</em></p>
  
  <pre><code>bundles.Add(new Bundle("~/bundles/jquery-ui-css").Include("~/Content/jquery-ui-1.11.4/*.css"));
  </code></pre>
  
  <p><em>_Layout.cshtml</em></p>
  
  <pre><code>@Styles.Render("~/bundles/jquery-ui-css")
  </code></pre>
  
  <p>The folder exists and the CSS files exist as well. Why is it not finding them? I'm not getting any errors. This only works if I add file by file, but I want to use the wildcard technique, which would otherwise defeat its purpose.</p>