I think rails was updated before I submitted this, as deliver_ methods don't work anymore. The rest of the report methods also make use of that (old) feature, I'll update this with a fix for that.

From [the rails guide](http://guides.rubyonrails.org/action_mailer_basics.html):
> In previous versions of Rails, you would call deliver_welcome_email or create_welcome_email. This has been deprecated in Rails 3.0 in favour of just calling the method name itself.