Summary: Ref T5179. Ref T4045. Ref T832. We can now write non-utf8 hunks into the database, so try to do more reasonable things with them in the UI.
Test Plan: (See screenshots...)
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T832, T4045, T5179
Differential Revision: https://secure.phabricator.com/D9294
