* smallchess face
* use correct game-state modifying board move function
* make show last work after undo
* use SCL_Game->ply instead of board[ply_byte]
* beep when cpu is done computing a move
* increase engine strength to ply 3
* match ply type and use the local variable where available
* fix warnings
* add doc to smallchess face
* smallchess: fix compile warnings
* smallchess: move smallchesslib.h to movement/lib
