initialization of parameters to NULL
remove an obsolete member of CardUseStruct
fix a bug of Room::filterCards
set default value of add-history to be false
images of Guo Jia and Da Qiao
new SP info
add Zhuge Dan
add Ma Liang
upgrade all commands
fix the log message of Room::askForKingdom
adjust pixmap cache mechanism
fix log message of GuHuo
fix HuangEn AI
fix game process in AI
marks of XieMu
deal with several memory leaks
combine fillRobots command into addRobot command
fix Room::getDrawPile() in swig file
add PR Sima Yi
fix role count in RecAnalysis