GiuChess 1.0 r02

• Fix all compilation warnings
• Change version number in the message sent to xboard

GiuChess 1.0 r01

• Can be compiled on Linux with the latest version of gcc.
• Supports opening forced by the tournament manager

https://talkchess.com/forum3/viewtopic.php?p=918391#p918391
https://talkchess.com/forum3/viewtopic.php?p=871626#p871626