hdf5_msb

Merge pull request #2697 in HDFFV/hdf5 from ~BYRN/hdf5_adb:develop to develop

* commit '5857bb817019b8513f796c9564de3f1845f9a44a':
  Only one line needed to compare
  Revert err file
  revert error-stack enable
  Add release notes for tools
  add test file ext
  Correct file name in test
  Tools refactor