Here is newest version.
* It allows configuring directories from LocalSettings.php,
* It has nicer support for log-like functions (for example
<math>e ^ \sin \alpha</math> is allowed now, it would
be error in real TeX)
* It contains a TODO file containing list of all things that
should be done before texvc is ready to be used on Wikipedias
(copy&paste from my previous emails mostly).