ISPN-2711 NPE in StateConsumerImpl.addUpdatedKey and isKeyUpdated

updatedKeys can be set to null by another thread that calls stopApplyingState() between the initial null check and the actual access leading to NPE. To guard against this it is enough to grab a local copy of the reference.
ISPN-2705 CLI XSite commands: select current cache when no cache name
specified
ISPN-2706 Minor help fixes
ISPN-2545 Explicitly add the slf4j-log4j12 implementation to the test dependencies to avoid issues with IBM JDK
ISPN-2716 Upgrade to Hibernate Search 4.2.0.Final
ISPN-2683 AS7.x modules packaging
ISPN-2578 Two PrepareCommands in parallel cause ConcurrentModificationException
ISPN-2728 AbstractCacheTransaction.hasLockOrIsLockBackup may cause NPE
- temporary fix