[texdoc] texdoc 0.80 with language support

[Manuel Pégourié-Gonnard]

Hi,

I just updated texdoc in the TeX Live repo to 0.80, should be at your local
tlnet mirror in a few days as usual. From the News file:

Version 0.80
============

New 'lang' configuration option (defaults on system locale): now <name>-de.pdf
wins over <name>.pdf if German is preferred. Patch kindly provided by Philipp
Stephani. Also works with aliases (eg koma-de = scrguide wins over koma =
scrguien).

Document the previously undocumented options from 0.72-tl2010.

Accept htm as a valid extension, synonym for html. Emit less warnings about
viewers.

Version 0.72 as in TeX Live 2010
--------------------------------

New (undocumented) settings (bad)basenme_list, parallel to (bad)ext_list.

New (undocumented) setting item suffix_list for known documentation suffixes,
previously hardcoded.

New (undocumented) option --just-view for use by front-end programs.


Many thanks to Philipp Stephani for his help on language support, and to
everyone who contributed suggestions on alias/adjscore updates.

Hope you enjoy this release,
Manuel.