Summary: DRAFT - throw together Phurl skeleton.
Test Plan: The idea is that `some/long/url` will become `install/Udet4d` and can be viewed and edited at `install/Udet4d/view` and `install/Udet4d/edit`, respectively?
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: joshuaspence, chad, epriestley, Korvin
Maniphest Tasks: T6049
Differential Revision: https://secure.phabricator.com/D13681
