Move django variants UT and selenium-headless to in-repo jobs
Move django variants UT and selenium-headless to in-repo jobs

Change-Id: Ic040bb1bf3e6c177dd88f2304491b7e839555e76

noironetworks/horizon,openstack/horizon,ChameleonCloud/horizon,openstack/horizon,ChameleonCloud/horizon,ChameleonCloud/horizon,noironetworks/horizon,ChameleonCloud/horizon,NeCTAR-RC/horizon,openstack/horizon,NeCTAR-RC/horizon,noironetworks/horizon,openstack/horizon,noironetworks/horizon,NeCTAR-RC/horizon,NeCTAR-RC/horizon