Implements JIRA task SGF-270 removing the validation logic and restriction on creating concurrent, parallel AsyncEventQueues in GemFire, which is supported in GemFire 8 and above.
Implements JIRA task SGF-269 removing the validation logic and restriction on creating concurrent, parallel GatewaySenders in GemFire, which is supported in GemFire 8 and above.
Adding additional integration tests to test the configuration of concurrent, parallel AsyncEventQueues and GatewaySenders in GemFire 8 using Spring Data GemFire.