Update Phurl to use EditEngine
Summary: Fixes T10673. Set up Phurl to use Edit Engine. There's no way this is all I needed to do to get it working, so I'll be making another pass at it and testing more thoroughly...
Test Plan: Ran through the Phurl URL creation/edit/deletion process.
Reviewers: Blessed Reviewers, epriestley
Reviewed By: Blessed Reviewers, epriestley
Subscribers: Korvin, epriestley, yelirekim
Maniphest Tasks: T10673
Differential Revision: https://secure.phabricator.com/D16573