0.4.0

💥 Breaking changes

• All classes are now final

✨ New features

• InvalidPostcodeException now has getPostcode() and getCountry() methods (#13)
• UnknownCountryException now has a getCountry() method (#13)

✨ Improvements

• The AT, BE and LU formatters now accept (and strip) a leading A/ B/L letter (#13)

Thanks to @rubentebogt!