ISPN-4733 Investigate potential issues with System.nanoTime() overflow

* Fixed TestingUtil calculation for when to stop trying
* Changed stats to not error if nanotime is -1 (extreme edge case)
* Also fixed TransactionTable when clearing old txs
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