relax SVN archive

The specific_analyses.relax_disp.disp_data.loop_time() function can now handle no relaxation times being set.

The error analysis is now skipped in the dispersion auto-analysis if the 'R2eff' model is not given.

It is then assumed that R2eff/R1rho data has already been loaded into the base data pipe and hence
the error analysis is not needed. This avoids fatal errors.

File path fixes for the script of the Relax_disp.test_hansen_cpmg_data_auto_analysis_r2eff system test.

Created files of R2eff values and errors for Flemming Hansen's CPMG data.

Changes for the Relax_disp.test_hansen_cpmg_data_auto_analysis_r2eff system test.

The file paths have been changed.

Created the Relax_disp.test_hansen_cpmg_data_auto_analysis_r2eff system test.

This is to test the full dispersion auto-analysis on Flemming Hansen's CPMG data using the original
R2eff data rather than the derived peak heights.

Implemented the relax_disp.r2eff_read user function.

Bot the frontend and backend have been implemented and are functional.

Improved printout for the relax_disp.spin_lock_field user function.

Improved printout for the relax_disp.cpmg_frq user function.

Improved printout from the specific_analyses.relax_disp.disp_data.set_exp_type() function.