Update mod-cluster property name to load-balancing-group. The "domain" alias no longer works for load-balancing-group causing configuration updates to fail with unknown domain property.
This is already in 3.2 build from commit https://git.fedorahosted.org/cgit/rhq/rhq.git/commit/?id=9320bfa050c332a5f89334fcf5606395e5ef9098 The upstream report revealed that configuration updates would fail if this value was unset for mod-cluster due to the property name of domain being sent with the update rather then load-balancing-group.
Verified 3.2.0.ER5