examples/nanshe_learner.json: Standardized spacing between colons.
examples/nanshe_learner_multiprocessing.json: Standardized spacing between colons.
examples/nanshe_learner_drmaa.json: Standardized spacing between colons.
nanshe/nanshe_learner.py: Add empty newline to the end of intermediate json config file.
tests/test_advanced_image_processing.py: Fix spacing.
tests/test_nanshe_learner.py: Add empty newline to the end of each json config file.
tests/test_tiff_file_format.py: Add empty newline to the end of the json config file.