No more files hanging around after nosetests
No more files hanging around after nosetests

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