The cluster id -1 is used to indicate objects that can be clustered,
but are not assigned to any cluster. The new methods to remove objects
from their current datastore actually set this 'none' or -1 cluster
ID.
VNets are always created in this 'none' cluster. Hosts and DS require
a cluster ID to be placed when allocated, and the ruby OCA by default
sets it to 'none'
* Chown method: destination user and group are checked, auth. manager request used.
* New one.group.chown method.
* New ObjectCollection class to store sets of IDs.
* New RM user.addgroup user.delgroup methods, users and groups store a cross-reference ID set.
* Clusters store a set of Host IDs. The RM part of the add/remove host functionality works, but should be re-done to avoid deadlocks.
* Fix onedb schmea for template_pool table bug.