title: bootstrap typeahead getting results data-source results to appear?
body: <p>i am not getting any results when i search.</p>
  
  <pre><code>&lt;input type="text" class="span1" id="tag_field" data-items='4' data-provide="typeahead" data-source='[&lt;?php echo json_encode($groups); ?&gt;]' &gt;
  &lt;?php echo json_encode($groups); ?&gt;
  </code></pre>
  
  <p>when i echo out json_encond($groups) it appears in this format </p>
  
  <pre><code>{"35":"biology","37":"economist","33":"programmers"} 
  </code></pre>
  
  <p>if i type in the data source using this format i do get results. </p>
  
  <pre><code> data-source='["Alabama","Alaska","Arizona"]'&gt;
  </code></pre>