vchoi_fork

Merge pull request #1123 in HDFFV/hdf5 from ~BYRN/hdf5_adb:develop to develop

* commit 'b1f5c9e9d63e16d67089f08ef2becc5119592a76':
  Fix ptr arith
  Correct function call
  Remove writeVL option
  Region reference in compounds need class check
  Correct cast formatting
  Correct var name
  Need to cast from void ptr
  Update Java util lib, Refactor H5D write VL to match read