[XeTeX] not enough \XeTeXcharclass registers

[Akira Kakuto]

> I use XeTeX on a daily basis, Jonathan ('tho XeTeXcharclass far less
> frequently) and would be happy to test your version on my production
> suites, but in order to do so I would require a Win64 (or Win32) build.

You can test the new experimental XeTeX on win32 by
http://members2.jcom.home.ne.jp/wt1357ak/xetex-exp-w32.zip

The file will be removed in due time.

Best,
Akira