0.pre8.54

0.pre8.54
	Assorted fixes
	... add TAGS to .cvsignore (tonyms)
        ... delete unused variable in REPL (tonyms)
	... 'WITH-' macrology for SB-GROVEL contrib, plus make-it-work
            fixes (Andreas Fuchs)
	... set MAX_INTERRUPTS back to some reasonable value (dan)
        ... use modify_ldt, not __modify_ldt, which is glibc-internal
	    and causes problems with RPM packaging (dan)