title: ion.rangeSlider update method triggering the change event
body: <p>I am using ion.rangeSlider plugin in my application, however whenever i update the slider 'from' value, the 'change' event is fired. How can replace the change event with 'finish' event so that it is only fired when the user releases the handle. Here is the snippets</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>const my_dates = [1560456085813, 1560517726557, 1560518176560, 1561605126457];
  
  $('#updateBtn').on('click', function() {
        updateSlider();
  });
  
  
  $('#seekSlider').ionRangeSlider({
          skin: "big",
          type: "single",
          grid: false,
          min: my_dates[0],
          max: my_dates[3],
          from: 0,
          values: my_dates,
          prettify: convertMillesecondsToDate
          
  });
  $('#seekSlider').on("change", function () {
  
  
          console.log('onChange event fired');
  
  });
  
  
  function updateSlider(){
  
  
       $('#seekSlider').data("ionRangeSlider").update({
       
            from: 2,
       
       });
  
  }
  
  function convertMillesecondsToDate(time_in_milleseconds)
  {
          const d = new Date(time_in_milleseconds);
  
          let dateString = d.toLocaleString('fr-FR'); // 13/06/2019 à 18:27:50
          return dateString;
  
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/ion-rangeslider/2.3.0/css/ion.rangeSlider.min.css"/&gt;
  
   
  &lt;input id="seekSlider" type="text" value="" /&gt;
  &lt;button id="updateBtn"&gt;Update the Slider&lt;/button&gt;
  
  &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/ion-rangeslider/2.3.0/js/ion.rangeSlider.min.js"&gt;&lt;/script&gt;</code></pre>
  </div>
  </div>
  </p>