added streaming test
added streaming test

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