vchoi_fork

Merge pull request #1050 in HDFFV/hdf5 from hdf5_1_10.sync to hdf5_1_10

* commit 'e8eb130ce6f031a3b8ea50dae491b101d92e9c80': (117 commits)
  Put back CTRL-L chars
  Update support link
  Update text
  Valgrind fixed by checking for prefix_len of 0
  HDFFV-9739 only executes H5E tests in production
  Remove link flag from compile command
  fix typo
  Add release note
  Correct attribute location
  HDFFV-9739 fix  copy testfiles command
  HDFFV-9739 remove obsolete test files
  HDFFV-9739 dup test file for concurrent tests
  HDFFV-9739 Fix autotools script
  HDFFV-9739 Change autotools test scripts
  Fix for HDFFV-10469: set to latest format for virtual layout encoding.
  Fix typo
  HDFFV-9739 Update test reference
  Update current windows test machines
  HDFFV-9739 Grab err number before API call
  HDFFV-9739 Add release note
  ...