[tex4ht] biblatex incompatibility

[Karl Berry]

    It seems that texlive contains an outdated package.

I try to update the tex4ht package in TeX Live whenever CVR makes a
release in tex4ht svn.  Those TL updates can be retrieved with tlmgr, as
well from TL svn.  I cannot explain why you don't have it.  It was
updated in TL revision 27847.

The current version of biblatex.4ht in TL, and in the "upstream" tex4ht
afaik, is {version 2012-09-28-15:51}.

karl