Bump version to next snapshot
Make transform return the same errors as validate

This includes the potential lookup of i18nized errors messages
and custom errors message. The return value of `transform` at
the key `:errors` is the same as what `validate` returns.
Refactor error message code
Refactor error message code
Thread through while on it
Merge pull request #4 from listora/transform-returns-error-messages

Make transform return the same errors as validate