Gigantic rebuild of the build structure.

The make system is now in Lisp.

The site itself now is categorized. Files that have category:name.md
will be sent to dropdowns having category, and you can select name.

Content-wise: It looks like linedit will suffice for users without a
GUI. For GUI users, I still need to investigate CUSP. LispWorks may be a
hard sell.

WRT non-gui option:

- CLisp threading doesn't work on OSX.

- CCL is OK, but the readline type functionality not so hot in the
terminal, i.e., doesn't work.

Rant: Things that Need To Work:

Tab completion and arrow keys. Why is it DOS can do this but CL defaults
can't? Do I need to write a terminal overlay for Lisps?