robots, dynamic js+css, and moar, oh my!

- Added robots.txt, disallowing all robot crawlers. May relax this in
the future, but for now, no creepy crawlers please. For 'bad' robots, if
they don't execute the javascript, they don't get anything but NPEs,
mwhwuahahahah!

- Removed the /works directory (it now resides under /industry).

- Added the /_ directory (it contains the base index.html page content,
effectively the NPE warning about missing or disabled javascript).

- Updated some of the index.html-s' loader functions, as the idea is now
to load all needed javascripts from within the 'reference' javascript
(the one src'd in the index.html file for the root and subdirectories).

-Moving forward, I won't be using organizations' images/logos/whatever
for the resume. I only got permission from CofC, and I shudder to think
what headaches the other org's may induce, so to avoid that altogether,
I'm not going to use images. The /works/toc.html content is a comment in
the /industry/index.html, but soon it will be removed and rebuilt (and
displayed) dynamically via the industry.js script.