Created the Relax_disp.test_r2eff_read and Relax_disp.test_r2eff_read_spin system tests.
These check the operation of the currently non-existent relax_disp.r2eff_read and relax_disp.r2eff_read_spin user functions.
Authored by: bugman 2013-10-29
Parent: [r21294]
Child: [r21296]
