tolerate missing space at end of gtf files, closes #162
tolerate missing space at end of gtf files, closes #162

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