Fix travis
Fix travis

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