title: how to refresh selectize options?
body: <p>I have an ajax call that change a select element options every success, i loop through the data and put it into a string</p>
  
  <pre><code>$.each(value, function(i, trx){
      trxListOptions += "&lt;option value="+trx+"&gt;";
      trxListOptions += trx;
      trxListOptions += "&lt;/option&gt;"
  }
  </code></pre>
  
  <p>then i appended the html string into select element</p>
  
  <pre><code>$("#selectizeTrx").append(trxListOptions);
  </code></pre>
  
  <p>then i initialize selectize</p>
  
  <pre><code>$("selectizeTrx").selectize();
  </code></pre>
  
  <p>this works, but only for the first time, after the second ajax call that change every select options, selectize options wont show the new options, it still shows the old options.</p>
  
  <p>how to refresh/reload selectize options so it adjust to original select element ??</p>