Commits
Merge pull request #105 in HDF5VOL/daos-vol from ~NFORTNE2/daos-vol:master to master * commit '32c5605b0fc826f0d533b6e0f4f4fd5766cdc848': Add comments to error description. Update error code changes. Switch internal error codes for asynchronous errors from macros to an enum. This necessitates switching the sign on these codes, so they should be referenced by their negatives (as are DAOS error codes).