title: Toggle working, but not animating on Bootstrap 3
body: <p>I'm implementing Bootstrap 3 on a site, and upgrading from Bootstrap 2.3.</p>
  
  <p>I have a little toggle on the navbar, that used to work like a charm, but now is toggling, but without sliding transition. I checked the Bootstrap 3 upgrading documentation and didn't find anything. </p>
  
  <p>What am I missing?</p>
  
  <p>Here's the code:</p>
  
  <pre><code>&lt;button class="btn btn-default btn-sm btn-info ico pull-right" data-toggle="collapse" data-target="#info"&gt;&lt;i class="icon-white icon-info-sign"&gt;&lt;/i&gt;&lt;/button&gt;
  &lt;div class="ix-info-costumer pull-right"&gt;
  &lt;ul class="ix-down"&gt;
  &lt;li&gt;&lt;strong&gt;&lt;?php echo _t('Username')?&gt;&lt;/strong&gt;: {{userData.firstname}} {{userData.lastname}}&lt;/li&gt;
  &lt;li&gt;&lt;strong&gt;&lt;?php echo _t('Credit balance')?&gt;&lt;/strong&gt;: {{creditData.available | currency: '€'}}&lt;/li&gt;
  &lt;ul id="info" class="collapse"&gt;
  &lt;li&gt;&lt;strong&gt;&lt;?php echo _t('Customer id')?&gt;&lt;/strong&gt;: {{userData.customerId}}&lt;/li&gt;
  &lt;li&gt;&lt;strong&gt;&lt;?php echo _t('Service PIN')?&gt;&lt;/strong&gt;: {{userData.servicePin}}&lt;/li&gt;
  &lt;/ul&gt;
  &lt;/ul&gt;
  &lt;/div&gt;
  </code></pre>