Added settings.draggingTimeout.

Useful so that the onClick events know they were dragged. without it the dragging flag is set back to false before the click event fires. E.G.

$overscroll =  $('#overscroll').overscroll();
$('#overscroll > a').on('click', function(event) {
           event.preventDefault();
           dragging = $overscroll.data('overscroll').dragging;
           console.log('Dragging: ' + dragging);
           if(!dragging) {
                console.log('Click');
           };
});