Make splash last for 100 frames insteade of 250
Add fps to game, default to zero, and default board_cursor_x and board_cursor_y to zero. Set the game's fps to 50 in the real main. Change to quit state when we get a quit event. Use some delay according to fps in the game loop.
Add some drawing to the menu and the session. This has revealed that there are clearly some bugs when playing the game.