Summary: Ref T603. We have a real policy app now, so put the config options there. Revise the description of the public policy switch to make it clear that enabling it immediately opens up the user directory and various other interfaces.
Test Plan: Viewed/edited config setting.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D7154
