display.Image: Blit Image objects in right order.
display.Image: Blit Image objects in right order.

It might be usuful to draw in the right order, going from top to bottom, so that
the child nodes will blit on top of the parent.

Signed-off-by: aszlig <ee1aa092358634f9c53f01b5a783726c9e21b35a@redmoonstudios.org>

aszlig/hase