* Fix README to reflect what is actually deployed.
* Fix AIO scenario to test Cinder, since it's deployed.
Change-Id: I1baf74eb363ef042cf84f6befad42f918251aa0b
scenario003 is going to be a scenario gated in OpenStack Infra.
It was created to be a AIO scenario, for our testers, so let's rename it
to scenario-aio.
In a further iteration, scenario003 will be a scenario used by our CI.
Change-Id: I53852757d013abfae10e5f4afd41ddbb18da3b03