Added test for role create, and role permissions

please review it
thanks


fixed the cli failures in jenkins for roles test : 
http://satellite-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/satellite6-automation/21/DISTRO=rhel7,ENDPOINT=cli,PROJ=downstream,PYTHON=System-CPython-2.7/testReport/

http://satellite-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/satellite6-automation/22/DISTRO=rhel65,ENDPOINT=cli,PROJ=downstream,PYTHON=System-CPython-2.7/testReport/