title: gravity forms fire js event on successfull form submission
body: <p>Is it in gravity forms anyhow possible to fire an javascript event on an successful ajax form transmittion?</p>
  
  <p>Adding html javascript into the displayed response does not seem to work eg:</p>
  
  <pre><code>&lt;script&gt;console.log("successful-form-transmition");&lt;/script&gt;
  </code></pre>