added some sweet placement.c changes, specifically adding functionality for ReverseOrderVertical and ReverseOrderHorizontal
added some sweet placement.c changes, specifically adding functionality for ReverseOrderVertical and ReverseOrderHorizontal

born2late/afterstep-devel,born2late/afterstep-devel,born2late/afterstep-devel,born2late/afterstep-devel,born2late/afterstep-devel