Localization for error messages

[jleufven]

Lovely package! Any thoughts on if it would be hard to support error messages in other locales then en(sv in our case). Not sure, but we could potentially pitch in and help out if you are ok with a PR.

[Airfooox]

Hey, sorry for the late response. Surely we can work something out for the localization of error messages. I'm open for any pull requests. I'll be looking into it, as soon as I have some time available