Pluralization completely broken

[vojtabohm]

This is not proper pluralization

It does not work for basically any other language than English, see
https://unicode-org.github.io/cldr-staging/charts/37/supplemental/language_plural_rules.html

For example "Czech" language has 4 categories:

"few" = 2-4, but your code always assigns 3 to "many"

[vojtabohm]

Plus it does not localize when the key contains a dot:

"something.people": {
    "one": "there is one person",
    ...
}

The .pluralize value comes out as "something.people.one"