make orientation option handle both

[jebaird]

make vertical and horizontal scrollbars on the same element

[jebaird]

maybe do something like this?

        //veritcal
        var vert = $.extend( true, $.jb.acescroll.prototype,{
            name: 'jb-ace-scrollv',
            widgetEventPrefix: 'acescrollv',
            widgetName: 'acescrollv',
          });

      vert.options.position ={
                my: 'left top',
                at: 'right top',
                offset: '11 0',
                collision: 'none'
            };

      $.widget('jb.acescrollv', vert )

       //horizontal

       var hoz = $.extend( true, $.jb.acescroll.prototype,{
            name: 'jb-ace-scrollh',
            widgetEventPrefix: 'acescrollh',
            widgetName: 'acescrollh',
          });

      hoz.options.orientation= 'horizontal';

      hoz.options.position = {
            my:'left bottom',
            at:'left bottom',
            offset:'0 20',
            collision:'none'
        }

      $.widget('jb.acescrollh', hoz )