modify suicide
fix reserve
add Board::resetReserve()
add comments for TinyMT
Update README.md
add timing support for GTPAdapter
modify the piece.empty() and add Board::true_eyes[] to count the true eyes
fix Board::getRandomPiece range bound checking error
debug Board::clone()
import AI_implement's changes on Board and GTPAdapter
improve getRandomPiece
debug getRandomPiece
modify the implement of SetNode and getSet, greatly improve the efficiency, delete the old codes
1. use game_ending as the random threshold (faster)

2. give up the discrete set, delete the stack
change ignore, enlarge the set_static_size
GTPAdapter can now ignore empty input
Modify TimyMT's wait(), now it returns the result of waiting
Threads now started by an event
add "reset()" for TEvent
Delete debug output