hdf5_ep

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

* commit '6387f7099d22c66dab415c57f9fd547eb86e4ad5':
  Small corrections to DOPYING file.
  Add new file COPYING_LBNL_HDF5.
  Revert "Clear hdf5 1.10 entries from RELEASE.txt in the develop branch.  Entries"
  Add LBNL license file and modify COPYING file accordingly.
  Omnibus checkin for several relatively minor modifications: