Error when env name/image not provided (#98)
Error when env name/image not provided (#98)

I also renamed image to envImg for consistency
life1347/fission,life1347/fission,life1347/fission,life1347/fission,life1347/fission,ktrance/fission,platform9/fission,platform9/fission,ktrance/fission,platform9/fission,ktrance/fission,fission/fission,life1347/fission,fission/fission,ktrance/fission,life1347/fission,platform9/fission,ktrance/fission,fission/fission,life1347/fission,ktrance/fission,life1347/fission,fission/fission