relax SVN archive

Shifted the target_functions.order_parameters module to lib.order.order_parameters.

Created the empty lib.order package.

Shifted the target_functions.jw_mf_comps module to lib.pectral_densities.model_free_components.

Shifted the target_functions.jw_mf module to lib.spectral_densities.model_free.

Fixes for the unit tests for the recent rearrangements.

Moved the target_functions.kronecker_product module to lib.algebra.kronecker_product.

Created the empty lib.algebra package - this is for advanced linear algebra not present in numpy.

Shifted the target_functions.direction_cosine module to lib.diffusion.direction_cosine.

Import fixes for the lib.geometry.coord_transform module.

Created the empty lib.diffusion package.