Download Kubespray instead of git clone
Download Kubespray instead of git clone

We don't install git by default (at least in CI), so let's use a
tarball instead of git clone to get Kubespray sources.

Change-Id: I8321206b095effbc482779a10ff77fd18299bbdf
Depends-On: I2da025961c584cb1adc83943561b1d9faa3559b1

openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates