Log Message:
Update ja-trac to 0.12.1pl1 a.k.a. 0.12.1ja1.

Trac-0.12.1ja1 (Nov 1, 2010)
 * Merge Trac-0.12.1
 * Translate default Wiki pages into Japanese.
   - trac/wiki/default-pages/*
 * Translate document for trac.ini options into Japanese.
   - trac/env.py
   - trac/versioncontrol/admin.py
   - trac/versioncontrol/api.py
   - trac/versioncontrol/svn_authz.py
   - trac/versioncontrol/web_ui/browser.py
   - trac/web/chrome.py
   - trac/web/main.py
   - trac/wiki/api.py

Trac 0.12.1 (October 9, 2010)
http://svn.edgewall.org/repos/trac/tags/trac-0.12.1

This list contains only a few highlights:
 - db: improve concurrency behavior (#9111)
 - fcgi: add an environment variable `TRAC_USE_FLUP` to control the usage of flu
p vs. bundled _fcgi.py (defaults to 0, i.e. use bundled as before)
 - svn authz: improve compatibility with svn 1.5 format (#8289)
 - milestone: allow to set the time for the due date (#6369, #9582)
 - ticket: fixes for the CC: property (#8597, #9522)
 - notification: improved the formatting of ticket fields in notification e-mail
s (#9484, #9494)
 - i18n: added a configuration option to set the default language (#8117)
 - several fixes for upgrade (#9400, #9416, #9483, #9556)