nanshe/nanshe_learner.py: Added timing statements before and after merge step.
nanshe/advanced_image_processing.py: Perform dilation on erosion result.
examples/nanshe_learner.json: Switched order of dilation and erosion.
examples/nanshe_learner_drmaa.json: Switched order of dilation and erosion.
examples/nanshe_learner_multiprocessing.json: Switched order of dilation and erosion.
nanshe/advanced_image_processing.py: Switched order of dilation and erosion.
tests/test_advanced_image_processing.py: Switched order of dilation and erosion.
nanshe/advanced_image_processing.py: Attempt at interpolation over smaller region.
nanshe/advanced_image_processing.py: Attempt at simplifying interpolation by breaking it up by line grouping.
tests/test_advanced_image_processing.py: Added new tests to deal with boundary cases.