Do not rethrow exception in ThreadPoolTaskExecutor needlessly.
AbstractTaskExecutorService now emits severe level logs when a cleanup task throws an exception.
Added logging tests to JTrim Core (to be continued).
AbstractTaskExecutorService now logs completely ignored exceptions thrown by a task.
Added logging tests to JTrim Core.
Added logging tests to JTrim Async.
AbstractTaskExecutorServiceTest tests that OperationCanceledException is not logged.
Added DebugTaskExecutorService.
Added DebugTaskExecutor.
JTrim is no longer alpha.