- fix crack: fragility just on first crack form INVISIBLE to SMALL,
all further cracks do happen for sure
- temp. fix on st-chameleon: throw exception on missing floor
- add lua constants:
YIN and YANG for actor attribute "player" - values 0, 1
CTRL_NONE, CTRL_YIN, CTRL_YANG, CTRL_YINYANG for actor "controllers" attr.
- reengineering floors fl-acblack and fl-acwhite:
- new name fl_yinyang, fl_yinyang_yin, fl_yinyang_yang
- floor as Stateobject: state with values YIN and YANG, can be toggled, etc.