Localization: allow UB request to specify (override) locale
There must be a way for request to pass the current language, so that developer won't need to do painful, form to form, request to request work by specifying "_lang^" suffixes manually. I believe it would be beneficiary for platform to be able to pass something like __lang: 'uk' in mParams.
Cases: anonymous user, which does not even have uData and rest of goodies available for regular users.