Fixed failing Spring GemFire integration tests (whem mocking is disabled) during the Nightly build: CacheNamespaceTest.testCacheWithAutoReconnectEnabled as well as all test cases in the DiskStoreAndEvictionRegionParsingTest test suite class.  The test failures were caused by the introduction of the GemFire 8 dependency and new constraint enforcements. Also made additional modifications and cleanup to the CacheClusterConfigurationIntegrationTests and related classes/components and files in an attempt to get the test passing reliably in the Bamboo CI env.  Seems a race condition is occuring between the time the Locator starts along with when the shared, cluster-based configuration service is actually running and when the GemFire Server date node (test class) requests the shared, persistent, cluster configuration from the Locator.