Added test to ensure the data object is passed to the conform handler

This test ensures the data object is passed through to the conform handler.

Also, slightly related, please can we get a version bump and a re-publish to npm? I really need this change in my app: https://github.com/flatiron/revalidator/commit/7feca07635428c5b021226ec1451f6a3b4e5b4e7

Thanks!