Triggered Events - Template Output

[Terran McCanna]

As a follow up to https://bugs.launchpad.net/evergreen/+bug/1207533 - we would like to be able to see the actual output of the template (it currently only shows the template output id).

We need this information fairly frequently (and have to run a database query to get it) in order to see things like what the sending email address was, what the send-to email address was, the exact subject line, which items were collected together in the same message. etc.