[tex4ht] TeX4ht support into latexmk

[Denis Bitouzé]

Hello,

John Collins (http://www.phys.psu.edu/~collins/) kindly added TeX4ht
support into latexmk to his list of features to add :)

A promising starting point can be tested by downloading and unzipping
the archive:

http://gte.univ-littoral.fr/members/dbitouze/pub/latex/divers/tex4ht-support-into/latexmk_ht-tar-gz/downloadFile/file/latexmk_tex4ht.tar.gz

and, in the "latexmk_tex4ht" directory, to test htlatex compilations
with:

./myhtlatex2 <file>

Of course, feedbacks are welcome!
-- 
Denis