Summary: Adds a FormEditEngine MenuItem for adding forms to Projects, Home, QuickCreate. Also adds an EditEngine typeahead that has token rendering issues currently.
Test Plan: Set a normal form as a menu item, edit it, set the name. Set a custom form as a menu item, edit it, set a name.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Differential Revision: https://secure.phabricator.com/D17098
