Run more tests in repeat-test.sh
Run more tests in repeat-test.sh

Until now, repeat-test.sh ran only one test after building the cluster
(launch_instance_private_net.sh). With this patch, it runs two
additional scripts which test Orchestration and the Dashboard.

Change-Id: Ib97d32a7453ce1ce32af64c39ae42c9e5e2f191f

openstack/training-labs,openstack/training-labs,openstack/training-labs