Updated map's unit test for allowance of numeric ops on non-num cols
Updated map's unit test for allowance of numeric ops on non-num cols

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