Rewrite to static site

With a complete reorganisation of the directory structure and most of
the content converted to pandoc-flavoured markdown.

Some TODO's left before this can go live:
- Main page
- Atom feeds
- Bug tracker

dat/dump-demo

@@ -1,28 +0,0 @@
-=pod
-
-Yes, I realise that the title is plural, suggesting there's more than one demo.
-That is not quite true, unfortunately. The reason I chose to use plural form is
-simply in the hopes that I do, in fact, write more demos, and that this page
-will actually get more content in the future. I still happen to be a huge fan
-of the L<demoscene|http://demoscene.info/>, and still wish to contribute to
-it... if only I could find the time and self-discipline to do so. In the
-meanwhile, here's one demo I did write some time ago:
-
-=head1 Blue Cubes
-
-[img right bluecubes.png Blue Cubes.]
-August 2006. My first demo - or more exact: intro. Blue Cubes is a 64kB intro
-written in OpenGL/SDL with Linux as target OS. I wrote this intro within 10
-days without any prior experience in any of the fields of computer generated
-graphics or music. So needlessly to say, it sucks. I am ashamed even of the
-thought of releasing it at a respectable demoparty like
-L<Evoke|http://www.evoke.eu/2006/>. Still, it didn't feel I was unwelcome, I
-did actually receive three prices: 3rd price in the 64k competition (there were
-only 3 actual entries, but oh well), best non-windows 64k intro (it was the
-only one in the competition), and the Digitale Kultur newcomer award, which
-actually is something to be proud of, I guess.
-
-L<download|https://dev.yorhel.nl/download/yorhel~bluecubes.zip> -
-L<mirror|http://scene.org/file.php?file=/parties/2006/evoke06/in64/yorhel_bluecubes.zip&fileinfo>
-(includes linux binaries, windows port, and sources) -
-L<pouet comments|http://pouet.net/prod.php?which=25866>.