replaced class-go-mailchimp-test.php with PHPUnit tests
removed remnant of class-go-mailchimp-test.php
Merge branch 'master' of github.com:GigaOM/go-mailchimp into go-mailchimp-tests
Merge pull request #2 from wluo/go-mailchimp-tests

ported the tests in components/class-go-mailchimp-test.php to PHPUnit tests