Commits
Merge pull request #1255 in HDFFV/hdf5 from ~DEROBINS/hdf5_der:develop to develop * commit '8a4695ed590809754794864d0473d15f8c1c69e3': Remainder of vol_normalization changes (dataset, attribute, files, objects).
Merge pull request #1255 in HDFFV/hdf5 from ~DEROBINS/hdf5_der:develop to develop * commit '8a4695ed590809754794864d0473d15f8c1c69e3': Remainder of vol_normalization changes (dataset, attribute, files, objects).