hdf5_ep

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

* commit '6eaef5ebd61b8019f66f51d3fe74ec3c1b1d4f0f':
  Reorder lines in HDF5config.cmake so that additions to end of $HPC-HDF5options scripts will take precedence.
  updated -E option
  remove -M option
  added -M HPC to ctest command
  fixed missing paralle test
  Adding cross-compilation for theta (ANL) and qsub (COBALT) batch controls.