relax SVN archive

Modified the 'NS R1rho 2-site' dispersion model to match the 'NS R1rho 3-site' models.

The 6D evolution matrix indices have been rearranged to match the 9D matrix indices. The tilt angle
for the initial magnetisation is no longer that for the average offset but that of state A, as was
changed for the 'NS R1rho 3-site' models earlier (r21911). The system test was therefore updated
for the slightly different behaviour.

Updated the relax results for the synthetic data of the 'NS R1rho 3-site linear' dispersion model.

Added the Omega_A,B,C resonance offset parameter definitions to the dispersion chapter of the manual.

Docstring fix for the lib.dispersion.ns_r1rho_3site module.

Fixes for swapped indices in the relaxation evolution matrix for the 'NS R1rho 3-site' dispersion models.

Last fixes for the 'NS R1rho 3-site' dispersion models.

These now behave identically to the cpmg_fit program with the PEAK_SHIFT flag disabled. The tilt
angle for the initial magnetisation is no longer that for the average offset but that of state A.

Transposed some of the 'NS R1rho 3-site' model evolution matrix elements.

These now match the 'NS R1rho 2-site' model.

Added the 'NS R1rho 3-site' models to the relax user manual.

This is for the 'NS R1rho 3-site' and 'NS R1rho 3-site linear' dispersion models.

This follows the tutorial for adding relaxation dispersion models at:
http://wiki.nmr-relax.com/Tutorial_for_adding_relaxation_dispersion_models_to_relax#The_relax_manual.

Removed the pC <= pB constraint from the 3-site dispersion models.

This is important for the linear models where a violation of this constraint is reasonable. This
has been replaced by the pC <= pA constraint.

Added the 'NS R1rho 3-site' models to the GUI model list.

This is for the 'NS R1rho 3-site' and 'NS R1rho 3-site linear' dispersion models.

This follows the tutorial for adding relaxation dispersion models at:
http://wiki.nmr-relax.com/Tutorial_for_adding_relaxation_dispersion_models_to_relax#The_GUI.