merge ChangeLog entries into one, for a single PR
merge ChangeLog entries into one, for a single PR

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