0.pre7.51:

0.pre7.51:
	The LAMBDAS slot of ENVIRONMENT isn't used? Delete it.
	renamed ENVIRONMENT structure to PHYSENV to reflect
		my understanding from reverse engineering while
		working on flaky5_branch
	renamed IR2-ENVIRONMENT structure to IR2-PHYSENV
	rename envanal.lisp to physenvanal.lisp
	bumped fasl file version number (should have done that last
		version too, since new low-level type codes are not
		good for binary compatibility, oops..)