alphagov/signonotron2 — pull request #272 by vinayvinay (2014-09-30 06:25:22+00:00)
Title: Disallow managing roles with greater privileges

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

* Only be able to manage users lower in the permission hierarchy
* 'Filter by Role' only shows roles that current user can manage
* Restrict the abilities of Admin and Organisation Admin users