hexorx/countries — pull request #156 by maxwell (2014-06-23 22:59:40+00:00)
Title: Add postal code knowledge

I've added a "postal_code" method, which returns a boolean if the given country currently requires postal codes as part of their addresses.

Very scientifically, I took it from this list of [http://en.wikipedia.org/wiki/List_of_postal_codes]

I've also aliased this as zip, zip? postal_code?