R1:84b92afe0815

Fix sending mail on Badges

Summary: Hopefully fixes mail issues. Don't have a local way of testing email replies, though.

Test Plan: Comment on a badge, get mail!

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: seayoung1112, epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D13717