fixed unit tests reflectiong query_length definition
fixed unit tests reflectiong query_length definition

TyberiusPrime/pysam,bioinformed/pysam,mattions/pysam,nlhepler/pysam,TyberiusPrime/pysam,bioinformed/pysam,mattions/pysam,TyberiusPrime/pysam,carolinux/pysam,dannon/pysam,pysam-developers/pysam,brendanofallon/pysam,pysam-developers/pysam,pysam-developers/pysam,daler/pysam,nlhepler/pysam,kyleabeauchamp/pysam,daler/pysam,kyleabeauchamp/pysam,brendanofallon/pysam,carolinux/pysam,nlhepler/pysam,dannon/pysam,TyberiusPrime/pysam,mattions/pysam,nlhepler/pysam,dannon/pysam,TyberiusPrime/pysam,bioinformed/pysam,dannon/pysam,brendanofallon/pysam,kyleabeauchamp/pysam,bioinformed/pysam,carolinux/pysam,carolinux/pysam,pysam-developers/pysam,kyleabeauchamp/pysam,mattions/pysam,brendanofallon/pysam,carolinux/pysam,brendanofallon/pysam,kyleabeauchamp/pysam,mattions/pysam,daler/pysam,bioinformed/pysam,nlhepler/pysam,daler/pysam,dannon/pysam,daler/pysam