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

src/applications/badges/editor/PhabricatorBadgesEditor.php

@@ -181,6 +181,7 @@ final class PhabricatorBadgesEditor
 
   protected function getMailTo(PhabricatorLiskDAO $object) {
     return array(
+      $object->getCreatorPHID(),
       $this->requireActor()->getPHID(),
     );
   }