merged with new master
merged with new master

ktaneishi/deepchem,peastman/deepchem,miaecle/deepchem,miaecle/deepchem,deepchem/deepchem,Agent007/deepchem,ktaneishi/deepchem,joegomes/deepchem,deepchem/deepchem,lilleswing/deepchem,miaecle/deepchem,rbharath/deepchem,rbharath/deepchem,joegomes/deepchem,ktaneishi/deepchem,peastman/deepchem,Agent007/deepchem,Agent007/deepchem,lilleswing/deepchem,lilleswing/deepchem