relax SVN archive

Bug fix for the model-free duplicate_data() method.

The data pipe objects are now properly copied into the new data pipe.

Modified the model selection print out.

Bug fix for the generic_fns.sequence.generate() function.

The data pipe is now sent into the return_molecule, return_residue, and return_spin function calls.

Fix for the convert_from_global_index() method.

An uninitialised variable is now set to 0.

Fix for the duplicate_data() method by calling the new convert_from_global_index() function.

Created the new function convert_from_global_index().

This converts the global index into the molecule, residue, and spin indecies.

Completed the conversion of the model-free duplicate_data() method to the new design.

A few fixes for the model-free duplicate() method.

Removed the creation of the model selection data pipe, as this is now automatic.

This commit follows r6625 where the same change was applied to the full_analysis.py sample script.

Rearranged the pipe switching before data duplication.