relax SVN archive

Fix for the dispersion auto-analysis for when only the single R2eff model is optimised.

This is for the case of exponential curve fitting, and allows Monte Carlo simulations to proceed
even when the mc_sim_all_models flag is False.

Fix for the dispersion auto-analysis if not enough models have been input for a final run.

The final model selection, Monte Carlo simulation, and results writing stage of the auto-analysis
now only occurs when enough models are present for model selection.

Removed some parts of the Relax_disp.test_r2eff_fit_fixed_time system test.

The last lines were non-functional.

Created the Relax_disp.test_r2eff_fit_fixed_time system test to show a failure in the auto-analysis.

This shows a failure of the R2eff fitting in the dispersion auto-analysis due to Monte Carlo
simulations being run when the calc() function should be called.

Added scripts for calculating the R2eff values for the 'LM63 3-site' dispersion model test data.

Missing import of the specific_analyses.relax_disp.variables.MODEL_LM63_3SITE variable.

Updated the reference Sparky peak lists for the 'LM63 3-site' dispersion model test data.

Added the new Sparky peak lists for the 'LM63 3-site' dispersion model test data.

Removed the old Sparky peak lists for the 'LM63 3-site' dispersion model test data.

Updated the 'LM63 3-site' dispersion model test data.

The CPMG frequencies are now more realistic.