R1:b5df5af04dde

Link to Herald transcripts from Herald transactions

Summary: See IRC. Some users are having difficulty figuring out why Herald is taking some actions. Make it easier to get to the transcript.

Test Plan: {F144622}

Reviewers: btrahan, chad

Reviewed By: chad

Subscribers: dctrwatson, epriestley

Differential Revision: https://secure.phabricator.com/D8804