R1:e7904ed59d05

Add advanced search ability to paste.

Summary: Partially complete advanced search (building a form that might be right).

Test Plan: Check that form appears for advanced filter.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin, AnhNhan

Differential Revision: https://secure.phabricator.com/D5807