Support multiple LDAP filters in the Phabricator UI
Summary: Ref T3208. Not ready for prime time yet.
Test Plan: ldap T.T
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley, frgtn, aran
Maniphest Tasks: T3208
Differential Revision: https://secure.phabricator.com/D8160