ISPN-4705 IllegalArgumentException: Segments must not be null or empty
ISPN-2042 Add easy trace logging facility to the test suite
ISPN-4745 Cluster Listener TX Batch incorrect when sending multiple
events

* Fixed typo where the events were sent inside the for loop
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-4470 Remove tabs and fix other formatting issues
ISPN-4470 RemoteCache's size() method should compute size globally

* A new statistic added that shows the number of keys a cache is
primary owner for. Use that statistic, calculated cluster wide,
to count the total number of entries in the cluster for the
remote cache.
* If statistics disabled, or using Hot Rod 1.x protocol,
keySet().size() is used as fallback.