This is patch 3 of 3 to change the internal usage of the terms
Bay and BayModel. This patch updates Bay to Cluster in DB and
Object as well as all the usages. No functionality should be
changed by this patch, just naming and db updates.
Change-Id: Ife04b0f944ded03ca932d70e09e6766d09cf5d9f
Implements: blueprint rename-bay-to-cluster