Added test for normalize_by_median.py for false_positive rate checking
Added test for normalize_by_median.py for false_positive rate checking

F1000Research/khmer,souravsingh/khmer,kdmurray91/khmer,Winterflower/khmer,jas14/khmer,F1000Research/khmer,ged-lab/khmer,Winterflower/khmer,Winterflower/khmer,souravsingh/khmer,kdmurray91/khmer,ged-lab/khmer,kdmurray91/khmer,jas14/khmer,ged-lab/khmer,F1000Research/khmer,jas14/khmer,souravsingh/khmer