for linux project usable in LAN

DONE:

1. login, select action/user, create room
2. upload and download files(include head image)
3. a basic sudoku game with different difficulty
4. the chat app is done but error when run(no time to debug now)

TODO:

1. use apache and mysql instead of default one
2. fix the bugs in chatroom app
3. implement gobang app according to server/client gnome-gobang available
4. add more actions and think AI(maybe robot to chat with you or play instead of you for some time)
5. beautify the appearance and test/debug/better