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
ISPN-3938 AdvancedAsyncCacheLoader.process() concurrency issues

Simplify ExecutorAllCompletionService to track the tasks itself instead of
using an ExecutorCompletionService.