{AH} use retry loops around downloads
{AH} use retry loops around downloads

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