ISPN-4377 Make receiving state option for Hot Rod remote events

* Add attribute to @ClientListener annotation to decide whether
to send back state to clients when adding listener or upon
failover.
* Refactored Hot Rod server event log listener to add assertions
to the listener itself.
* Added missing javadoc to @ClientListener.
* Modified addListener protocol operation to support optional
inclusion of state.
* Updated Hot Rod protocol 2.0 specification to add new flag
for addListener operation.
* Updated Hot Rod client documentation to specify how include
current state functionality works both when adding a new listener
for the first time, and upon failover.
ISPN-4689 NumOwnersNodeCrashInSequenceTest random failures
ISPN-1261 Implemented missing CDI events
ISPN-4744 RemoteCacheOsgiIT fails to run

* Overwrite JBOSS_HOME to point to the standalone server being started.
* replace non-existing standalone server configuration
* let paxexam know about custom maven local repositories
ISPN-4744 RemoteCacheOsgiIT fails to run

Ensure the protofiles are loaded properly
ISPN-4744 RemoteCacheOsgiIT fails to run
ISPN-4744 RemoteCacheOsgiIT fails to run
ISPN-3743

Ignore some of the errors that can be thrown by a node while stopping:
IllegalStateException and NullPointerException.