R: [trinity-devel] New default help handbook page for non-existent help files

If a localized page is not found then users of that language will still be greeted with the unprofessional "There is no documentation available for %1." message with the blank background.

Until a localized version exists, we can use the English page in case of documentation not found. Better than the unprofessional blank background message. When a localized version becomes available, we simply replace the English file with the localized version.

Michele