set default # of hts to 2
set default # of hts to 2

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