ISPN-4502 Use 127.0.0.1 everywhere instead of localhost

* Use 127.0.0.1 everywhere instead of localhost
* Add one LDAP entry for LDAP service on 127.0.0.1
* Add missing dependency to enalbe ApachDS logging to get more details about the failures
* Suppress console output
* Don't reuse forks to ensure there are no interference between tests
  (see discussion uinder https://github.com/infinispan/infinispan/pull/2900)
ISPN-4025 Cross-Site State Transfer: failure scenarios
Change ReplicatedCHFactory to only replace leavers in updateMembers()

Uneven primary ownership should be dealt with in rebalance() only.
Delegate the isBalanced() check in DefaultRebalancePolicy to the CH factory

Allows waitForRehashToComplete() to work even if the CH factory allocated
less than numOwners owners to each segment.