title: JQuery QueryBuilder not working
body: <p>I am using <a href="http://mistic100.github.io/jQuery-QueryBuilder/">JQuery QueryBuilder</a> in my HTML page. I have followed the <a href="http://mistic100.github.io/jQuery-QueryBuilder/#installation">installation guide</a>. My HTML head includes the following </p>
  
  <pre><code>    &lt;script src="bower_components/jquery/dist/jquery.min.js"&gt;&lt;/script&gt;
      &lt;script src="bower_components/bootstrap/dist/js/bootstrap.js"&gt;&lt;/script&gt;
      &lt;script src="bower_components/moment/moment.js"&gt;&lt;/script&gt;
      &lt;script src="bower_components/jquery-extendext/jQuery.extendext.js"&gt;&lt;/script&gt;
      &lt;link href="bower_components/bootstrap/dist/css/bootstrap.css" rel="stylesheet" type="text/css" /&gt;
      &lt;link href="bower_components/jQuery-QueryBuilder/dist/css/query-builder.default.css" rel="stylesheet" type="text/css" /&gt;
      &lt;script src="bower_components/jQuery-QueryBuilder/dist/js/query-builder.standalone.js"&gt;&lt;/script&gt;
  </code></pre>
  
  <p>My body has </p>
  
  <pre><code>&lt;div id="builder"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>But when I use</p>
  
  <pre><code>&lt;script&gt;
    $('#builder').queryBuilder({
      filters: [ ... ]
    });
  &lt;/script&gt;
  </code></pre>
  
  <p>My Chrome console says </p>
  
  <pre><code>query-builder.standalone.js:437 Uncaught TypeError: Cannot set property 'queryBuilder' of undefined
  </code></pre>
  
  <p>All my bower componenets are installed properly.</p>
  
  <p>What am I doing wrong?</p>