Crosstalk: did these used to all be in www?
www/acstdocs.html directs to "REPL.html", is this a bug?
www had a symlink f_l.html to fl.html, I recreated it to fix some pages

Looks like commments.html never was in faq/webmath/tth and
faq/webmath/webeq

http://web.mit.edu/acs/www/insider/ exists, but the pdf files are
missing.
