Summary: Ref T4896. Depends on D10055. This uses core rendering stuff for audit comments, and fixes all the wonkiness with inlines so we can actually land the migration.
Test Plan: Viewed, previewed and edited various types of comments in Diffusion.
Reviewers: chad, btrahan, joshuaspence
Reviewed By: joshuaspence
Subscribers: epriestley
Maniphest Tasks: T4896
Differential Revision: https://secure.phabricator.com/D10056
