In qseq output, null and empty index sequence should both result in 0
In qseq output, null and empty index sequence should both result in 0

tkrishp/Hadoop-BAM,HadoopGenomics/Hadoop-BAM,ryan-williams/Hadoop-BAM,HadoopGenomics/Hadoop-BAM,tomwhite/Hadoop-BAM,ryan-williams/Hadoop-BAM,fnothaft/Hadoop-BAM,HadoopGenomics/Hadoop-BAM,fnothaft/Hadoop-BAM,cmnbroad/Hadoop-BAM,cmnbroad/Hadoop-BAM,fnothaft/Hadoop-BAM