changed package name and filename to test
minor comment mods
changed Map.java to GameMap.java to avoid confusion with Map type
added comment; still not quite sure how to implement
ReadMap had minor changes to play with pacakge; moved out the heuristcs
and stuff
added Picture.java to astar package
added constructors and parameters.
renamed Map.java
added Tuple.java to roll a tuple data type. current implementation
doesn't work
Picture keeps failing to load a picture...
changed import to get AntData to not cause eclipse to freak out
added a stub method on Graph