v1.0 - Initial release.

v1.1 - Updated comm routines.
       Fixed minor aerial strike bug which would sometimes cause a data file 
         inconsistency.
       Increased potential effectiveness of aerial strike.
       Added pauses for long game selection menus.
       Increased periscope range from 3 spaces to 5.
       Top Ten list no longer displays players with 0 wins.
       Added option to place items before you have a challenger.
       Added depth charge capability to battleships.