ENHANCEMENT Marking 2.1-style "_lang" tables obsolete in Translatable::requireDefaultRecords()
ENHANCEMENT Added override flag to Translatable::addTranslationGroups()
MINOR Disabled Translatable->TranslationMasterID - not implemented yet
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@75677 467b73ca-7a2a-4603-9d3b-597d59a354a9