eac/luhn_checksum — pull request #1 by ggrossman (2014-07-08 21:28:35+00:00)
Title: Wrote some real README text.

* Update gemspec email to ggrossman@zendesk.com as eac@zendesk.com
is no longer valid.

* Add Rakefile

* Add .travis.yml

/cc @rtatsumi @vkmita