clean up
client Mapc tests clean up
client Map test clean up and more tests,
client Map test clean up and more tests,
Merge branch 'master' into clientMapTest
Simplified OperationScheduler

Removed the Generic Operations make use of the same scheduling mechanism as the partition operations.
More cleanup
More cleanup
More cleanup
Minor tweaks
tiny refactoring
Fixes #2250
Fixes #2251 HazelcastInstanceFactory#newHazelcastInstance should return interface HazelcastInstance.
Merge pull request #2229 from pveentjer/operationservice-removal-global-executor

Operationservice removal global executor
 test fixes.
 test fixes.
Merge branch 'master' of https://github.com/hazelcast/hazelcast
Fixes #2255

The cause was that there was a subclass of QueuItem (TxnQueueItem) that was serialized, but when deserializing
the deserialize method of the QueueItem was called. So the stream could corrupted because not all fields were
being read.
Fixed a typo in a log message
Merge pull request #2257 from ahmetmircik/ms/sp/fix2251

Fixes #2251 : HazelcastInstanceFactory#newHazelcastInstance should return ...