Fixed missing operation counts in performance tests, which were dropped because their final count was below the performanceUpdateFrequency. They are now logged at least at the end of the test.
Merge remote-tracking branch 'hazelcast/master' into fixUnmeasuredOperationCount

Conflicts:
	stabilizer/src/main/java/com/hazelcast/stabilizer/tests/concurrent/atomiclong/AsyncAtomicLongTest.java
Merge pull request #439 from Donnerbart/fixUnmeasuredOperationCount

Fixed missing operation counts in performance tests