ISPN-4490 Members can miss the rebalance cancellation on coordinator change

Simulate the rebalance cancellation in StateTransferManagerImpl.
ISPN-4496 EncryptProtocolIT shouldn't check passwords via JMX
Replace ignore tests with empty test to avoid false alarms
Use the proper configuration for the remote executor
Move the up handler deregistration to CommandAwareRpcDispatcher.stop
Logging improvements
TODO
Fix TestingUtil.clearContent for secure cache managers