0.8.0.13:

0.8.0.13:
	Miscellaneous grab bag of fixes
	... use SB!XC:MOST-POSITIVE-FIXNUM in bit-bash type; the
		expression is no doubt still wrong for 64-bit lisps, but
		it stands a chance of being right for 32-bit; :)
	... NIL is a valid structure slot name; (yes, really!)
	... whine about invalid keywords in macro calls even if there
		are no defined keywords (but just &KEY) in the lambda
		list;
	... prettify the compile-time warning in
		%COMPILE-TIME-TYPE-ERROR a little;
	... a couple of IGNOREs