Change Details

We have the job class based on QtThread and the QmitkImageStatisticsGeneratorRunnable based on QtRunnable. Both do practically the same and are redundant. I would depricate the job class in favor of the runnable class.

We have the job class based on QtThread and the `QmitkImageStatisticsCalculationRunnable` based on QtRunnable. Both do practically the same and are redundant. I would deprecate the job class in favor of the runnable class.

We have the job class based on QtThread and the `QmitkImageStatisticsGeneratorCalculationRunnable` based on QtRunnable. Both do practically the same and are redundant. I would depriecate the job class in favor of the runnable class.