If u play Piano, you can now hear the notes if sound effects OR music is enabled
Previously, they always required sound effects to be on
Refactor usage of sndRideOfTheValkyries, now can play if music is on and sound is off
Fix freezer ray extending with low fuel usage when firing straight up/down while holding up/down key
Fix
bug #651: sliding hog firing rope could end up stuck in land right after the rope has attached