Adds a keypair-id override parameter on cluster-create
to optionally override the keypair present on the
given ClusterTemplate.
In cluster-template-create, keypair-id is now an optional
parameter.
Fixes old help text referencing Bays/Baymodel.
Change-Id: Iaa934432ec56268c70001579a02658eceaa76b6d
Implements: blueprint keypair-override-on-create
Depends-On: I177a5aa06f881156944a9f74c9ccc3cd2abac492