csamtools.py - allow setting sequence of length 0
csamtools.py - allow setting sequence of length 0

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