Some work on the save_object method
Some work on the save_object method


Former-commit-id: 8551f2987e80ec06551ba9d9907e3f79a8f5efbf
Former-commit-id: 6deedd4c398ae8706bace2d234a5fa83235c190a
stadelmanma/OpenPNM,amdouglas/OpenPNM,TomTranter/OpenPNM,amdouglas/OpenPNM,PMEAL/OpenPNM