0.8.4.23:

0.8.4.23:
	Fix for bug 191c (and some of PFD's tests)
	... do proper keyword argument checking in the effective method
	... not the cleanest fix in the world (note especially
		the use of PROGN as an optimization inhibitor)
	... I'm not telling you how long it took me to find the
		NCONC -> APPEND bug in fngen.lisp