relax SVN archive

Updates for the test suite data script for optimising Flemming Hansen's CPMG data.

The model list has been shorted to the useful models, and the grid search size is now reasonable.

Removed a double full stop in the relax_disp.select_model docstring.

Fix for the model equivalence setup in the nesting() method of the dispersion auto-analysis.

This is the use of the analytic CR72 model parameters for the numeric models to avoid the grid
search.

Updated the Noe.test_noe_analysis system test for the changes of r20385.

These were the changes to the lib.software.grace.write_xy_header() function.

Added the 'LM63 3-site' dispersion model to the model list in the GUI.

It is not selected by default.

Added a warning not to use the 'LM63 3-site' model to the dispersion chapter of the user manual.

Added the relax results for the 'LM63 3-site' dispersion model test data.

Added the CPMGFit results for the 'LM63 3-site' dispersion model test data.

Another update of the 'LM63 3-site' dispersion model test data.

This data now makes CPMGFit happy!

Modified the 'LM63 3-site' dispersion model test data again.

This time the data has been changed to be that of two residues rather than two spins.