Implemented systemtest Relax_disp.test_cpmg_synthetic_ns3d_to_b14.
bug #22021: (https://gna.org/bugs/?22021) Model B14 shows bad fitting to data.
This is to catch model B14 showing bad fitting behaviour.
Authored by: tlinnet 2014-05-21
Parent: [r23314]
Child: [r23316]
