alphagov/signonotron2 — pull request #273 by vinayvinay (2014-10-01 07:06:31+00:00)
Title: Disallow managing roles with greater privileges

www.agileplannerapp.com/boards/173808/cards/5254

* Only allow superadmins to view and manage other superadmins
* 'Filter by Role' only shows roles that current user can manage