Made use of the dictionary MODEL_PARAMS, to determine if parameter is present.
This makes the list of models belonging to parameter lists superflous.
sr #3135(https://gna.org/support/?3135): Optimisation of the R1 relaxation rate for the off-resonance R1rho relaxation dispersion models.
Authored by: tlinnet 2014-08-05
Parent: [r24950]
Child: [r24952]
