Revision history for Perl extension AI::Pathfinding::AStar::Rectangle.

0.01  Wed Apr  1 13:54:05 2009
	- original version; created by h2xs 1.23 with options
		-A -n AI::Pathfinding::AStar::Rectangle

0.02  Wed Apr  1 13:54:05 2009
    -   Some bugfixes
0.16  September 25  23:34 2010
    -  foreach_xy foreach_xy_set implemented in PP.
    -  added clone. 
    -  added test for this functions