relax SVN archive

The model lists in the model-free GUI auto-analysis now use unicode for the S2 parameters.

The model_free.select_model user function GUI element now uses unicode for the model parameters.

The tau character is now used for the tm, te, tf, and ts parameters. And a superscript 2 is used
for the order parameters.

The relax_disp.select_model GUI wizard combo element now uses unicode for the dispersion parameters.

This is for all the models. The 'LM63 3-site' model parameter list has also been fixed to match the
current set.

Fix for the 'NS R1rho 2-site' model description in the relax_disp.select_model user function.

Added the 'TP02' and 'NS R1rho 2-site' models to the R1rho model list in the dispersion GUI.

These models were missing from the list.

Used far more unicode for superscript, subscript and Greek letters for the model parameters.

This is for the model list elements in the dispersion GUI tab.

Small changes to the tooltips of the R1 and chemical shift buttons.

The chemical shift icon now has a transparent background.

Changed the chemical shift icon to that of the chemical shift in ppm units - the delta symbol.

Better support for off-resonance R1rho data in the dispersion GUI.

A new row of buttons has been added to the dispersion GUI, just above the Peak list GUI element.
The first button is for the spin.isotope user function and replaces the old GUI element. Two new
buttons for loading R1 data and chemical shifts have also been added, as required for off-resonance
R1rho data.