0.8.11.6:

0.8.11.6:
	Fix countless bugs in backquote printing.
	... descend quoted list structure, necessary in nested
		backquotes;
	... fix the fix to Brian Downing's bug: MAPCAR is not
		sufficiently like MAPCAN.
	... add a couple of tests, but frankly we need some more.  If
		someone out there has a test suite for backquote
		behaviour, that would be rather nice.