examples/nanshe_learner.json: Exposed the gaussian window size parameters for extract_f0.
examples/nanshe_learner_multiprocessing.json: Exposed the gaussian window size parameters for extract_f0.
examples/nanshe_learner_drmaa.json: Exposed the gaussian window size parameters for extract_f0.
tests/test_advanced_image_processing.py: Changed tests so that the window sizes for the gaussians are always supplied to extract_f0.
tests/test_nanshe_learner.py: Changed tests so that extract_f0 always gets the window sizes for its gaussian filters.
nanshe/advanced_image_processing.py: Made window sizes for extract_f0's gaussian filters mandatory.