TryGhost/Ghost — pull request #2252 by jondavidjohn (2014-02-25 03:32:00+00:00)
Title: Change fallback from address to webmaster@[blog.url]

This change is needed because the previous default of the user's email
address is too often mismatched against the site domain, triggering spam filters.

Fixes #2145
- added `fromAddress()` to GhostMailer to handle this logic
- added unit tests to `mail_spec.js`