title: JSON is appearing as unicode entities in Jinja2 template
body: <p>I using Jinja2 with webapp2. </p>
  
  <p>Jinja2 encodes all 'context' data into unicode as their doc says. This is proving problematic when I try to insert a json string into the the template:</p>
  
  <pre><code>jsonData = json.loads(get_the_file('catsJson.txt'))
  </code></pre>
  
  <p>I pass jsonData to template and I'm able to loop it successfully but when I insert a json element into HTML, it looks like this:</p>
  
  <pre><code>&lt;option value='[u&amp;#39;dogs&amp;#39;, u&amp;#39;cats&amp;#39;]'&gt;
  </code></pre>
  
  <p>I want it to look like this (as it is in the original json string):</p>
  
  <pre><code>&lt;option value='["dogs", "cats"]'&gt;
  </code></pre>
  
  <p>Any suggestions?</p>