hdf5_der

Merge pull request #329 in HDFFV/hdf5 from ~BYRN/hdf5_adb:page_buffering to page_buffering

* commit '1a5d0b70b5fe874a41db94d8fd9dc4693b10f0d8':
  Fix name of file used by test
  files are copied to a subfolder
  Fix test out names
  Add missing depends
  Remove external dependencies
  For concurrent testing - use premade files for some tests
  Add missing copy reference file
  Split CMake tests files and update clear to match autotools script