relax SVN archive

Fixes for the parameter checks in the Relax_disp.test_r1rho_off_res_fixed_time_tp02 system test.

The parameter values had not been updated from when the test was copied from one of the other tests.

Fix for the synthetic data for the TP02 dispersion model.

The nitrogen chemical shift was not converted from ppm to rad/s before being used to calculate the
offsets.

Comment fix for the loop_cluster() function.

Fix to allow R1 data to be randomised for Monte Carlo simulations for off-resonance R1rho data.

This is a temporary kludge for the dispersion analysis and needs to be replaced by a cleaner
solution via the base_data_loop() method.

Fix for the Relax_disp.test_bug_20889_multi_col_peak_list GUI test.

The spectrum.read_intensities user function no longer has 'heteronuc' and 'proton' arguments.

Added checks to the specific_analyses.relax_disp.disp_data.return_r1_data() function.

This is to help indicate to the user when data is missing.

The dispersion specific code is now assembling the R1 data and passing it to the target function.

The new specific_analyses.relax_disp.disp_data.return_r1_data() function creates a data structure
holding all the R1 data. This is used in the off-resonance R1rho experiments.

The Relax_disp.test_r1rho_off_res_fixed_time_tp02 system test script now reads the R1 relaxation data.

This data is essential for the model optimisation.

The dispersion target function class now handles R1 relaxation data.

This data is essential for the off-resonance R1rho models.

The TP02 model R1rho off-resonance test data creation script now creates files of the R1 relaxation data.

These files are needed for the system tests, as R1 data needs to be read.