Added description of change to ChangeLog
Added description of change to ChangeLog

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