Summary: I always put a `phlog()` somewhere or something fails and I have hard times figuring out which request it was. Also fix safe HTML in panel. Test Plan: Looked at DarkConsole with error on main page, AJAX request and both. Reviewers: epriestley Reviewed By: epriestley CC: aran, Korvin Differential Revision: https://secure.phabricator.com/D5784