relax SVN archive

Added the spin_id variable.

This missing variable was found using the palmer system tests script...

Alphabetical ordering...

Started to add system tests for model-free analysis using Modelfree4.

Inverted the population parameter scaling factor to 100.

Bug fix for the __disassemble_param_vector() method.

The parameter vector with alignment tensor parameters is now properly split into the alignment
tensor components and probabilities.

The data_type arg is now accepted by __disassemble_param_vector().

Passed the data_type variable into the __disassemble_param_vector() method.

Made the assemble_param_vector() and disassemble_param_vector() methods private.

Fixed the creation of the A and b constraint matrices.

Changes to the linear_constraints() method.

The method is now private and accepts new arguments for the different types of N-state model.