IDN/Punycode in URL

[wowbagger (冀卓疌)]

Would you accept pull requests?

@Karl

Figuring out the API (including the name - I've called it XURL as a placeholder; I don't think it would be wise to have a second type called URL with different behaviour, and we all know that the 'X' makes it cool)

What do you think of URI? I've entertained myself with the idea of a URI type that supersedes URL and parses URNs as well.