listora/validate_as_email — pull request #7 by fpgentil (2014-10-06 17:14:05+00:00)
Title: Fix gem that stopped working after commit in mail gem

Since the `2da7c7985c221272f6451b27ab8b41e84e0a6804` commit in `mikel/mail`, this gem has stopped working raising an `Exception`:

```
Failure/Error: validator.validate(person)
NoMethodError:
undefined method `tree' for #
```

So I changed the `:tree` to use `:parse` method, this way I'm still able to get the `local`, `domain` and validate the email.