R1:6a3c1ba05c91

Fix bin/lipsum

Summary:
- Set a default edit policy to match view policy for projects
- It seems like initializeNew* is a better init function than new Phabricator*,
so ported two classes to use it and spot-checked the others (this also fixed
a fatal.)
- Other minor bugs

Test Plan: Ran lipsum for a while without any fatals

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, jhurwitz, Korvin

Differential Revision: https://secure.