ISPN-4301 Handle storeMetadata=false in JpaStore.process and JpaStore.purge methods
ISPN-4301 Fixing process() behaviour in other stores (honor the fetchValue & fetchMetadata properly)
ISPN-4636 Upgrade to Hibernate Search 5.0.0.Alpha6
ISPN-4461 Add VERIFY_SUSPECT back in JGroups UDP stack
ISPN-4398 Remove client listeners from event senders