relax SVN archive

Initialised the back calculated RDC array.

Missing import.

Fixed the incorrect testing for the presence of RDC errors.

Converted the RDC and unit vector lists in minimise_setup_rdcs() to numpy matrices.

Changed the initialisation of the N_state_opt class.

The rdcs, rdc_errors, and xh_vect args are now all expected to be numpy matricies. The rdcs and
rdc_errors matricies have also been transposed!

Fixes for the func_population() method.

Fix for the addition of alignment tensor parameters in assemble_param_vector().

Created the tensor_5D automatically generated object to AlignTensorData.

Fix for the __determine_data_type() method.

The flags were not correctly checked.

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

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