[cvs-nhc98] patch applied (nhc98): update docs for a 1.20 release

Fri Nov 23 03:47:44 PST 2007 Malcolm.Wallace@cs.york.ac.uk * update docs for a 1.20 release M ./docs/copyright.html -3 +3 M ./docs/download.html -76 +39 M ./docs/extensions.html -1 +4 M ./docs/history98.html -3 +9 M ./docs/index.html -6 +5 M ./docs/libraries.html -5 +14 M ./docs/status.html -9 +27