relax SVN archive

A script has been added to create the NESSY input for Flemming Hansen's CPMG data.

Created the relax_disp.nessy_input user function front and backends.

This user function takes the data in the relax data store and creates a NESSY save file to be opened
within NESSY. The backend is the new specific_analyses.relax_disp.nessy module. For the GUI
frontend, graphics for icons and the wizard have been taken from the NESSY repository file
pics/nessy_new.png@r1088 in the trunk.

The relaxation dispersion loop_point() function can now return the reference point.

This is enabled via the skip_ref argument.

Removed the '_trunc' part of the nessy_results directory from the NESSY final save file.

The CPMGFit script for Hansen's CPMG data now starts with the high precision error r2eff_values.bz2 file.

This ensures consistency between comparisons between relax, NESSY, CPMGFit, etc.

Created a script to calculate the R2eff rate errors extremely precisely for Hansen's CPMG data.

This uses 1 million Bootstrap simulations for calculating the errors. The 'r2eff_values.bz2' is
saved after deleting the spin specific r2eff_sim structures so that the file drops from 388 Mb in
size to 7.3 kb.

Updates some scripts for the spectrometer.frequency user function change.

The relaxation dispersion auto-analysis now handles the Bootstrapping simulations.

The bootstrap_sim_num argument can now be passed into the auto-analysis, and the run() method then
executes the relax_disp.r2eff_setup user function.

Created the relax_disp.r2eff_setup user function.

This is required to set the number of Bootstrapping simulations to use in the calc user function.
It replaces the hardcoded variable.

Created the specific_analyses.relax_disp.disp_data.spin_has_frq_data() function.

This is for determining if a spin has peak intensity for the given spectrometer field strength.