Fix so BAMRecordCodec will recognize when qual array has been changed.
Fix so BAMRecordCodec will recognize when qual array has been changed.

broadinstitute/picard,nh13/picard,nh13/picard,broadinstitute/picard,alecw/picard,annkupi/picard,nh13/picard,annkupi/picard,alecw/picard,annkupi/picard,annkupi/picard,broadinstitute/picard,alecw/picard,alecw/picard,broadinstitute/picard,broadinstitute/picard,nh13/picard