nanshe/wavelet_transform.py: Exclude imOut unless include intermediates is True.
nanshe/wavelet_transform.py: Cleaned up docstring.
nanshe/wavelet_transform.py: Store latest difference separately from past differences.
nanshe/wavelet_transform.py: Skipped constructing or calculating W unless include_intermediates is True.
nanshe/wavelet_transform.py: Allows for lower scales to be returned if desired.
nanshe/advanced_image_processing.py: Updated to reflect new wavelet_transform options.