insertBefore for children with negative ranks
insertBefore for children with negative ranks

davedf/mapjs,bhargav175/mapjs,bhargav175/mapjs,danielrasmuson/mapjs,pyxis777/mapjs,mindmup/mapjs,pyxis777/mapjs,AbdulMuhsinSE/mapjs,ztx1491/mapjs,ztx1491/mapjs,AbdulMuhsinSE/mapjs,AbdulMuhsinSE/mapjs,davedf/mapjs,pyxis777/mapjs,ztx1491/mapjs,danielrasmuson/mapjs,bhargav175/mapjs,mindmup/mapjs,danielrasmuson/mapjs