add next/register.html page, improve bin/gen-status.sh

Added a new `next/register.html` that is required by the mailing list server.
The `next/register.md` still contains a big **XXX - put more data here - XXX**
as a placeholder for information about the mailing list registration process.

Improved the status text for `faq.html`, `next/index.html` and `status.html`
via `faq.md`, `next/README.md` and `status.md`.  We also removed the
excessive links to IOCCC and instead use the term "contest" where applicable.

IMPORTANT CHANGE: Registration be available when the contest is both pending and open.

We made a number of changes to `faq.md`, `next/README.md` in an attempt to
reflect the above.

Changed `bin/gen-status.sh` VERSION from "1.7 2024-09-23"
to "1.8 2024-11-23".

Changed `bin/gen-top-html.sh` VERSION from "1.4.9 2024-08-11"
to "1.4.10 2024-11-23".

Perform `make www` and `make gen_status` to perform the above and test under macOS.

TODO: Change **XXX - put more data here - XXX** in `next/register.md` for information
      about how to join the mailing list.

bin/md2html.cfg

@@ -357,6 +357,22 @@ next/README.md
 	-D
 	../
 
+next/register.md
+	-H
+	navbar=empty
+	-o
+	bin/subst.default.sh
+	-s
+        TITLE=The International Obfuscated C Code Contest
+	-s
+	DESCRIPTION=How to register for the IOCCC
+	-s
+	KEYWORDS=IOCCC, register, registration
+	-s
+	HEADER_2=How to register for the IOCCC
+	-D
+	../
+
 next/rules.md
 	-H
 	navbar=empty