ISPN-4862 Don't use static resource fields to initialize the shared description resolver in the static initializer. This fixes an initialization race where some fields could be null
ISPN-4673 Split-brain: get() returns null when all owners are removed
from view

* If get returns null, check that at least one owner is in the cluster.
* Replace RpcException with AvailabilityException if there are no valid
  answers.
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
Log partition availability changes on each node on debug level