Modified test_estimate_r2eff_err_auto, to set r1_fit to False.
This still make the systemtest pass, and fit R1.
So this means R1 fit button is not functioning properly.
task #7822(https://gna.org/task/index.php?7822): Implement user function to estimate R2eff and associated errors for exponential curve fitting.
Authored by: tlinnet 2014-08-28
Parent: [r25367]
Child: [r25369]
