Date API fixes, i18n additions & fixes

+ Fixed TZ_Data generation
+ Removed some colon in the translated strings
+ Translated all timezones on Russian
+ Other langs fixes

@sandeepone Suggest to rename `Date::timezones` to `Date::getTZ_Data` or `Date::TZ_Data` or `Date::TzData` because it is a common name for such things. This is just my opinion.