Fix some Releeph jankiness in interacting with the redesign
Summary: Releeph does some really old sketchy stuff in result rendering. Modernize it, remove the holdover/oldschool interface (these were the last two implementors) and make errors a little softer.
Test Plan: Viewed Releeph products and branches.
Reviewers: btrahan, chad
Reviewed By: chad
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D13604