relax SVN archive

Shifted the spin cluster GUI element to be just after the spin system GUI element.

This is simply a more logical placement.

Modified the experiment type descriptions in the dispersion GUI.

Created a very basic GUI element for the dispersion analysis for clustering.

This is simply to make this feature more obvious. The button just launches the relax_disp.cluster
user function.

The relax_disp.cluster user function GUI menu entry now uses the cluster icon.

Added a preliminary icon set for spin clustering.

Added a sample script for the relaxation dispersion analysis of CPMG-type data.

Updated the model lists for the relax scripts for Flemming Hansen's CPMG data.

Removed the state.save user function calls from the relax scripts for Hansen's CPMG data.

Created some basic initial GUI wizard graphics for J couplings.

Added some basic initial relax icons for J couplings.