All old, outdated, manually-generated translations of docs now
go into an "outdated" subdirectory. The "tuxpaint-docs"/gettext-based
ones are the "first-class citizens".
Don't install the docs directory's "Makefile", or the instructions
for how to release Tux Paint, as those are not necessary to end users.
Stop using old `lynx`; use `links`, and use UTF-8 codepage for
output (for Russian, Chinese, etc. to still work right).
Regenerate all TXT versions of docs available in HTML.
