title: NightwatchJS how to emit html5 drag drop
body: <p>Maybe someone knows how to drag elements which have implemented html5 drag&amp;drop.
  I need this in e2e test using nightwatchjs.
  I tried:</p>
  
  <pre><code>        browser.useCss()
          .moveToElement("div.test-dragbtn-row",10,10)
          .mouseButtonDown(0)
          .moveToElement('div.test-container-root',50,50)
          .mouseButtonUp(0).pause(3000);
  </code></pre>
  
  <p>In browser I can see that element is pressed, but second move not works, moreover it holds mouse down on element until I enter physically with mouse into browser window.</p>
  
  <p>Maybe someone done test with nightwatchjs for drag and drop, and knows how to overcome this?</p>