ENH: Add warning for bad rt_chisq
FIX: Fix errors
change outlier criterion from 3sd to quartiles +/- 1.5*iqr
Merge pull request #3 from drammock/fixch

change outlier criterion from 3sd to quartiles +/- 1.5*iqr
Merge pull request #145 from Eric89GXL/fixch

ENH: Add warning for bad rt_chisq