Improved lc-locale-flatten tools.
Changed UI fonts for non-ascii characters.
Japanese translation added.
Added translation instruction
Updated Japanese translation
Added Japanese translation of help/*.html; Set tidy -utf8
Updated Japanese translation
Updated Japanese translation [ci skip]
Added Japanese entry in makefile [ci skip]
Updated Japanese translation [ci skip]
Improved tools/bin/lc-locale-flatten.sh
Updated Japanese translation [ci skip]
Japanese translation for linux and macosx [ci skip]