Commits
Merge pull request #704 in HDFFV/hdf5 from optimize_superblock_read to develop * commit '3dde6d0e32461f46630f814a2fdfbd4c813703bf': Updated the code and RELEASE.txt note per comments from John Mainzer Try to address most of the issues raised by Dana in the code review Made edits suggested by John as part of the code review Update the MANIFEST and release_docs/RELEASE files Add a test for parallel reads of independent files using MPI subgroups Edits to the file open optimization and associated test code to bring them closer to the HDF5 library's unwritten coding standards. Also bug fix to repair a hang in testphdf5. The initial coding for the superblock read optization