Implementation of the simple board game called Mancala

 This is an implementation of the simple, but fun board game known as
 Mancala. Contains both a user-unfriendly character-based interface, and a
 nice, user-friendly X11-interface. Be warned: If you just bother to read the
 rules, you may get hooked on this! For more information about the Mancala
 family of games, please read http://en.wikipedia.org/wiki/Mancala