move repository arcanist projects over to new phid stuff

Summary: also submit casual entry for longest class name award with new query class. Ref T2715

Test Plan: phid.query and saw the right arcanist project

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2715

Differential Revision: https://secure.phabricator.com/D6586