specified which version of isnan to use in KeyListOps
specified which version of isnan to use in KeyListOps

jmarshall/bedtools2,jmarshall/bedtools2,jmarshall/bedtools2,jmarshall/bedtools2,arq5x/bedtools2,arq5x/bedtools2,arq5x/bedtools2,jmarshall/bedtools2,arq5x/bedtools2,arq5x/bedtools2