title: How do you change the upload destination by file type using Dropzone.js?
body: <p>I have a need for files of different types to go to different destinations. </p>
  
  <p>How might you rewrite <code>Dropzone.prototype.processQueue</code> or <code>Dropzone.prototype.processFiles</code> to send to different destinations. </p>
  
  <p>I'm not sure if/what asynchronous work arounds need to be in place to swap <code>this.options.url</code> in and out.  </p>