ISPN-4950 Add ability to merge defaults into Metadata passed as param

* This is required in order to be able to apply default lifespan and
max idle settings configured globally for the cache.
* To do so, a new method has been added to builder that allows a
Metadata object to be merged with the builder instance.
* By making the default metadata builder implementation use objects
for primitives, it can easily distinguish between those settings
that have been set by the user versus the builder defaults.
'Release Script: update versions for 7.0.2-SNAPSHOT'
ISPN-4512 CacheManagerTest.testCacheManagerRestartReusingConfigurations random failures

Move the up handler deregistration to CommandAwareRpcDispatcher.stop
TODO
Logging improvements
Fix TestingUtil.clearContent for secure cache managers
find_unstable_tests_teamcity wasn't using the command-line arguments
Log non-CacheRpcCommand responses
Stop forked threads after each method, not just after the class
Log filtering script fix
Fix TestingUtil.extractComponentRegistry for secure caches
Replace Exception.printStackTrace with proper logging
Replace System.out.println with logging
Merge the performance test group into the profiling group
find_unstable_tests_teamcity.py fixes
Increase UUID lifespan to 20 minutes
ISPN-4760 Cluster registry doesn't work when rebalancing is disabled

* Rebalancing should always be enabled for the cluster registry cache
* Fix StateTransferSuppressIT