relax SVN archive

Fix for the OMP model-free optimisation system test.

The MF_MODELS variable now exists.

Fix for grid_search_config_diff().

The diffusion tensor is located in 'cdp.diff_tensor'.

Fix for the grid_search_config_diff() method and the call to it.

The current data pipe is aliased, and the verbosity flag is not sent into the method.

Fix for the assemble_scaling_matrix() method.

The current data pipe is now aliased as required.

Added a missing import.

Added the modified OMP PDB file 1F35 with only H and N atoms present and created through Molmol.

Added some missing imports.

Renamed run to data pipe in the model selection function.

Fix for the omp model-free optimisation system test.

The fix() user function is properly called.

Converted the fix() function to the new design.