Add nb_NO locale

[hanse]

Add support for Norwegian Bokmål (nb_NO).

The first day of a week is Monday. Do I need to specify that somewhere?

Closes #290.

[leshakoss]

@hanse Thank you!

The first day of a week is Monday. Do I need to specify that somewhere?

No, right now weekStartsOn isn't a part of locales but a separate option specified in functions independently (it may change in future major versions)

[leshakoss]

@hanse please rename it into just nb. We generally use two letter codes for languages (except in cases when the second part of four letter code refers to a variant of macrolanguage)

[hanse]

Okay, done!

[leshakoss]

@hanse thank you for your contribution! 🇳🇴 Norwegian Bokmål locale was released with 1.14.0 and also was broken by me 😅 and fixed in 1.14.1. (diff overall: v1.13.0...v1.14.1)

[stianlp]

Looks like there is an issue with the build. In https://github.com/date-fns/date-fns/blob/master/src/locale/nb/_lib/localize/index.js weekdays abbreviated is ['søn', 'man', 'tir', 'ons', 'tor', 'fre', 'lør'].

When I install date-fns, this is what I find in node_modules. var weekdays3char = ['sø.', 'ma.', 'ti.', 'on.', 'to.', 'fr.', 'lø.']. I assume weekdays3char should be the same list as dayValues abbreviated?

So doing format(date, 'ddd D. MMM', { locale: nb });, ends up being "Ma. 28. jan", not "Man 28. jan".