Improved systemtest test_bug_negative_intensities_cpmg, by counting number of R2eff points.
Spin 4, which has one negative intensity, is expected to have one less R2eff point.
This makes sure, that all CPMG data set can be loaded and analysed, even if some peaks are very weak are fluctuating with error level.
Authored by: tlinnet 2014-08-29
Parent: [r25457]
Child: [r25459]
