prefer single quotes in perl code

Following Perl Best Practices: use single quotes (q//) if no
interpretation is expected.

• [D] index.plp

update links, license, and version

Now hosted at its proper (sub)domain (instead of some dir at my home pc).
Also decided on the AGPL license (described and linked in the footer).
Celebrate by bumping the version number for once.

• [D] index.plp

terse stylesheet

Puts key names over the entire key, instead of placing them besides the
descriptions.  This allows the buttons to be much less wide, making the
entire keyboard fit on lesser resolutions as well.

The CSS surprisingly even seems to work in MSIE.  Unfortunately the key
label is always on top (z-indexes won't help here), but with enough
transparancy they still kind of fade to the background (IE is out of
luck here; I'm not going to support their filter crap).

• [D] index.plp

change history in seperate file

• [D] index.plp

move todo from code to seperate text file

• [D] index.plp

add version number

• [D] index.plp

Initial commit

• [D] index.plp