Hardcoded the writing of R2eff as function of the tilt angle Theta, when using the function relax_disp.write_disp_curves().
Regarding sr #3124, (https://gna.org/support/index.php?3124) - Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
Theta values per spin will be written if the spin.model is in the list MODEL_LIST_R1RHO_FULL.
Authored by: tlinnet 2014-03-12
Parent: [r22470]
Child: [r22472]
