title: What happened to nav-header class?
body: <p>With Bootstrap 2.3.2 you could use the <code>nav-header</code> class as follows to create a grouped list.</p>
  
  <pre><code>&lt;ul class="nav nav-pills nav-stacked"&gt;
      &lt;li class="nav-header"&gt;Group A&lt;/li&gt;
      &lt;li&gt;&lt;a href="/items/1"&gt;Item 1&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="/items/2"&gt;Item 2&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="/items/3"&gt;Item 3&lt;/a&gt;&lt;/li&gt;
      &lt;li class="nav-header"&gt;Group B&lt;/li&gt;
      &lt;li&gt;&lt;a href="/items/4"&gt;Item 4&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="/items/5"&gt;Item 5&lt;/a&gt;&lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p><a href="http://getbootstrap.com/2.3.2/components.html#navs">Reference</a></p>
  
  <p>In Bootstrap 3.0.0 the <code>nav-header</code> class seems to have been removed, though I can't find any mention of it being removed in the docs. I also can't find a replacement.</p>
  
  <p>Is this kind of functionality still present?  If so, what's the new way?</p>