Cldr version 2.4.0

Enhancements

• Minor restructuring of the locale files. Calendar map keys are harmonised to have the same names and meanings. This would not normally be user visible but a change in data format suggests a minor version bump to easy version management.

• Restructure the data returned by Cldr.Config.week_info/0 to also encode week days as numbers in the range 1..7 where 1 is Monday.