Check out melting glacier. Things sort of sink
Merge branch 'master' of https://github.com/friedeggs/icys

Conflicts:
	bin/icys/java/Block.class
	bin/icys/java/Fish.class
	bin/icys/java/LifeForm.class
	bin/icys/java/MeltingGlacier.class
	bin/icys/java/Utilities.class