fixed updating MA errors, new error placed at index 0, to align with the way coefficients are reported for AR
fixed updating MA errors, new error placed at index 0, to align with the way coefficients are reported for AR

SeelozInc/spark-timeseries,cloudera/spark-timeseries,SeelozInc/spark-timeseries,sryza/spark-timeseries,superwaiwjia/spark-timeseries,sryza/spark-timeseries,aba1476/spark-timeseries,samklr/spark-timeseries,Diwahars/spark-timeseries,sunheehnus/spark-timeseries,cdalzell/spark-timeseries,cloudera/spark-timeseries,cdalzell/spark-timeseries