Changed to use options dialog

Updated so that the result dialog will not be shown if the opponent has disconnected before the game starts

Added support for chat

Added background music and updated sounds

Updated structure of source codes

Added robot

Added time limit

Updated so that the game will end when there is only one active player left

Improved the flow when other players disconnect

Fixed an alignment problem in Chinese versions

Updated the in-game text

Fixed fonts embedding so that player names are properly displayed.

Added 9 languages