fix for issue #747. add = and X CIGAR ops for bamtobed
fix for issue #747. add = and X CIGAR ops for bamtobed

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