Support Ferret engine for searching users
Summary:
Ref T12819. Adds support for indexing user accounts so they appear in global fulltext results.
Also, always rank users ahead of other results.
Test Plan: Indexed users. Searched for a user, got that user.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T12819
Differential Revision: https://secure.phabricator.com/D18552