relax SVN archive

Modified the __update_model() method to create empty alignment tensors as necessary.

This is for the RDC based analysis were the tensors are optimised.

Complete change of the __determine_data_type() method.

The alignment tensors should be present when RDCs are loaded - they are part of the optimised model!

Fix for a missing cdp alias.

Updated the assemble_param_vector() method to return the correct parameter vector.

Spun out some of the minimise() code to create the __determine_data_type() method.

Fixes for the __update_model() method.

The probabilities and Euler angle parameter arrays are only created for the relevant N-state model.

Fix for the func_population() method.

The RDC errors are now set to 1.0 if no errors are supplied, converting the chi2 value to a SSE
value.

Fix for the average_rdc_5D() function. The unit XH bond vector indecies were still in Mathematica format.

Implemented the core of the func_population() method.

Renamed the invalid variable name 5D_vector to vector_5D.