Added a number of image feature extractors which produce output suitable to be used with scikit-learn and some feature vector handling methods.
Added a new smoothing filters: Anisotropic diffusion and xd-minus1 gaussian extending scipy.ndimage.filters.gaussian_filter.
Added a image metric: Mutual information.
Added a number of unittests for various functions and classes.
A number of minor and medium changes to some scripts and functions.
Removed the anisotropic diffusion filter implementation as class AnisotropicDiffusion, as now implemented as function in filters.smoothing.
Added a script to apply aniostropic diffusion filter to an image.