hdf5

Merging in latest from upstream (HDFFV/hdf5:refs/heads/hdf5_1_10)

* commit '6d353f8ccc908d494a4ea8e1a56c9fb8e973e908':
  Snapshot version 1.10 release 2 (snap2)
  Merge pull request #703 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:develop to develop