- Updated task-tutorial.5.in with new syntax.
- Removed examples using implicit 'info' command.
- Updated examples for new syntax.
- Updated copyright.
- Note that the tutorial is still firmly a 1.9.3 tutorial, with no
new examples other than syntax changes.
- Renamed all holiday files to include a locale, rather than just
a country code.
- Enhanced update-holidays.pl add-on script to support regions,
provide better error handling, error on missing Perl module,
warnings on unavailable data, and help text.
- Updated documentation accordingly.
