Refactors cinder controller setup section in osbash
Refactors cinder controller setup section in osbash

This patch changes the sequence of some operations
in the setup_setup_cinder_controller script, tweaks echo
statements to match install-guides and adds links to the
section in install-guides.

Change-Id: I32797013fb2eec041b7abcd672d7ef2c651c98f7

dguitarbite/OpenStack-Labs,dguitarbite/OpenStack-Labs,openstack/training-labs,openstack/training-labs,dguitarbite/OpenStack-Labs,openstack/training-labs