This fixes #136 in the most practical way.
advanced_image_processing: Changed all max projections being stored so that they keep the same dimensionality as the arrays they came from.
nanshe_learner: Changed all max and mean projections being stored so that they keep the same dimensionality as the arrays they came from.
nanshe/advanced_image_processing.py: Added logging messages for entering and exiting the watershed segmentation portion of wavelet_denoising.
nanshe/advanced_image_processing.py: Split some long lines over several lines.