Commits
Merging in latest from upstream (HDFFV/hdf5:refs/heads/hdf5_1_8) * commit 'f97cd0310642c36135be2ab4e99657cce5fb2ccd': Snapshot version 1.8 release 20 (snap5)
Merging in latest from upstream (HDFFV/hdf5:refs/heads/hdf5_1_8) * commit 'f97cd0310642c36135be2ab4e99657cce5fb2ccd': Snapshot version 1.8 release 20 (snap5)