The criteria for aborting the residual moment fitting step was too strict (i.e., it could abort even if the residuals were very small, if there was a large enough percent increase in the residuals). This fix makes these criteria less stringent, but we can still abort the problem if it is obviously blowing up.
Addresses #106.
The criteria for aborting the residual moment fitting step was too strict (i.e., it could abort even if the residuals were very small, if there was a large enough percent increase in the residuals). This fix makes these criteria less stringent, but we can still abort the problem if it is obviously blowing up.