Added rudimentary network server.
Changed protocol to deliver state in separate messages.
Completed network client and server.
Added ability to convert board and pieces to/from strings.
Fixed typo in exception message.
Added method to clear board's pieces.
Board now leaves the location of captured pieces intact.
Converted to network-based game.
Capitalized wait message.
Removed unnecessary piece type.
Converted both game and server to executables.
Added ability to specify server port on command line.
Added ability to specify server for game client on command line.
Updated readme to reflect network server and client changes.