Merged r6402 from trunk....
Merged r6402 from trunk.
PDF: remove unused DejaVu fonts except DejaVuSans-BoldOblique.
FreeSans has freesansbi.rb. But there is no dejavusansbi.rb.
git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/1.2-stable@6408 e93f8b46-1217-0410-a6f0-8f06a7374b81