hdf5

Merge pull request #825 in HDFFV/hdf5 from ~BMRIBLER/hdf5_1_8_bmr:hdf5_1_8 to hdf5_1_8

* commit '6707b3c31564a7ed08d149c2b5210eba6a6ba2ae':
  Replaced H5Dopen with H5Dopen2. Platform tested:     Linux/32 2.6 (jam)