add openstack source file.
	they are:
		openstack/glance/files/glance-2013.1.2.tar.gz
	       openstack/horizon/files/horizon-2013.1.2.tar.gz
	       openstack/horizon/files/noVNC.tar.gz
	       openstack/horizon/files/websockify.tar.gz
	       openstack/keystone/files/keystone-2013.1.2.tar.gz
	       openstack/nova/files/nova-2013.1.2.tar.gz
	       openstack/quantum/files/quantum-2013.1.2.tar.gz