Update of gitignore
Update of gitignore


Former-commit-id: 2446bf8e7bbb0bd41c913d0d739cd4bd587ee5bd
Former-commit-id: 5d1d552c699da3a4312454fd7cfe4fea7a4f2fb6
PMEAL/OpenPNM,stadelmanma/OpenPNM,amdouglas/OpenPNM,TomTranter/OpenPNM,amdouglas/OpenPNM