relax SVN archive

Bug fix. Szz was not being calculated correctly.

Updated the return_data_name() function to handle the Sij and Pij elements.

Fixed the unit tests of the alignment tensor structure.

The bond lengths were not being cubed!

Implemented the generic_fns.align_tensor.kappa() function.

Change the import order.

Shifted the gyromagnetic ratio values into the physical_constants.py file.

Updated all the unit tests of the alignment tensor data structure.

Modified the generic_fns.align_tensor.set() function to handle the Saupe and prob matrix.

Big modifications to the alignment tensor data structure.

The Saupe order matrix elements are now defined and are the default. The Aij elements are now all
calculated from the Sij elements. The Pij elements are also now calculated.

Added sections to the init() function for the different tensor types.