enable other modes of use like the built-in --cgi mode, without
me having to anticipate them in detail.)
+ - add the option (and perhaps even make it default) to address HTML
+ subpages by pathname rather than by index number. More than just
+ cosmetic: it means that in a scenario where agedu --cgi is always
+ running but the index file is updated by cron, subsidiary
+ pathnames will remain valid across a change.
+
- we could still be using more of the information coming from
autoconf. Our config.h is defining a whole bunch of HAVE_FOOs for
particular functions (e.g. HAVE_INET_NTOA, HAVE_MEMCHR,