{AH} create empty config.h for samtools if it does not exist, fixes #245
{AH} create empty config.h for samtools if it does not exist, fixes #245

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