update docstring in setup.py for new release
update docstring in setup.py for new release

TyberiusPrime/pysam,bioinformed/pysam,bioinformed/pysam,kyleabeauchamp/pysam,pysam-developers/pysam,TyberiusPrime/pysam,kyleabeauchamp/pysam,kyleabeauchamp/pysam,kyleabeauchamp/pysam,pysam-developers/pysam,bioinformed/pysam,pysam-developers/pysam,bioinformed/pysam,TyberiusPrime/pysam,TyberiusPrime/pysam,kyleabeauchamp/pysam,pysam-developers/pysam,bioinformed/pysam,TyberiusPrime/pysam