[ BACKWARDS INCOMPATIBILITIES ]
- The DateTime::Language modules are no longer being developed or
distributed as part of the DateTime.pm distribution.
Because of this, all "language" parameters should now be replaced by
"locale" parameter. The "language" parameter is deprecated and will
be removed in a future release.
Also note that locales should be specified via ISO codes, not names
like "English". The old DateTime::Language names will continue to
work indefinitely, but they load DateTime::Locale objects instead.
Locale-specific data will be returned in utf8 when necessary.