Battleship edition gameplay changes

Additional chance to player on a successful hit. Modifications to
exception handlers to support this new gameplay patterns. Updated
executables for both editions of the dotcom game.

Executable battleship edition v1.1 contains all the modifications done
in the source code during this commit.

battleship edition v1.0 is the original game executable for the
battleship edition.

guessing game v1.0 contains the original guessing game.

updated jar file for the dotCom game Battleship edition.