I found a pretty annoying bug that I needed to fix, so I finally sat down and fixed a couple of old ones too.

http://wakaba.c3.cx/releases/wakaba_3.0.7.zip
http://wakaba.c3.cx/releases/kareha_3.1.2.zip

• The spam.txt filter was not working at all in Wakaba! Apparently the spam trap has been effective enough that nobody even noticed, but when I had to deal with that spammer who's posting by hand, I noticed it was broken. This seems to be because of some obscure Perl bug (or strange but correct behaviour), actually, which I've hopefully managed to work around.
• Made the entity parser a bit more robust against abuse. This should remove the possibility to make javascript: links in Kareha, and remove some possibilties to introduce XHTML errors. Thanks to hotaru for the testing.
• Fixed the "Del all" link in Wakaba.

Changes only in wakautils.pl, wakaba.pl, kareha.pl, spam.txt and the config_default.pl files (just bumped the version number in those).

Hopefully I didn't fuck up anything too badly packaging this, it's been a while.