title: Scrolling occurs only after touch end is completed in GWT ScrollPanel
body: <p>I am using GWT 2.4.
  There is a delay in scrolling, when viewing the web application in ipad(ios 7).
  The scroll event fires only after the touch end event is completed, thereby making it look unresponsive at times. The scroll also freezes when I try to scroll when scrolling is already happening. Does anyone have the same problem? Please help me.</p>
  
  <pre><code>protected void addContentPane()
  {
          ScrollPanel touchScroller = new ScrollPanel();
          touchScroller.setStyleName("touchScrollContainer");
          touchScroller.setSize((width - 2) + "px", contentPaneHeight + "px");
          touchScroller.getElement().setId(tabID);
          touchScrollPane = new HTML("", true);
          touchScrollPane.setHTML("A big boring String....");
          touchScroller.setWidget(touchScrollPane);
          contentPane.add(touchScroller);
      }       
  }
  </code></pre>