ARGO-227: have rights_list check group tag for 'stanford', leave todo comment about making that more robust.  add a test case with a non-stanford group.  improve test case descriptions, remove a commented out pending.app/controllers/registration_controller.rb
ARGO-227: have rights_list check group tag for 'stanford', leave todo comment about making that more robust.  add a test case with a non-stanford group.  improve test case descriptions, remove a commented out pending.