Register/deregister HazelcastInstances to OutOfMemoryErrorDispatcher.
Merge pull request #507 from noctarius/3.0

Added SerializationConfig for supporting custom serialization in HazelcastClient connections
Added config listener registrations.
Merge branch '3.0' of github.com:hazelcast/hazelcast into 3.0
Added tests config listener registrations.
Reduced test parallelization.
HeartBeatChecker bug fixed
Merge branch '3.0' of github.com:hazelcast/hazelcast into 3.0
Merge remote-tracking branch 'origin/3.0' into 3.0

Conflicts:
	hazelcast-client/src/main/java/com/hazelcast/client/HazelcastClient.java