cjheath/geoip — pull request #24 by leemhenson (2013-02-20 14:13:10+00:00)
Title: don't explode while each-ing if a postal_code is nil

Hi. On our version of the GeoIPCity file, each-ing over the cities would raise an error because a postal_code on one of the cities was nil. I've added a guard clause to protect against that.