Fix ngDragClone when the page scrolls
Fix ngDragClone when the page scrolls

- Fix the position of the ngDragClone element when the page is scrolled.

paschty/ngDraggable,fatlinesofcode/ngDraggable,magnet-clip/ngDraggable,JIakki/ngDraggable,dietrich-stein/ngDraggableRedux,dietrich-stein/ngDraggableRedux,magnet-clip/ngDraggable,YellowSharkMT/ngDraggable,Gmulti/ngDraggable,Gmulti/ngDraggable,beatboxjs/ngDraggable,beatboxjs/ngDraggable,JIakki/ngDraggable,paschty/ngDraggable,endiny/ngDraggable,fatlinesofcode/ngDraggable,endiny/ngDraggable,YellowSharkMT/ngDraggable