vchoi_fork

Merge pull request #2435 in HDFFV/hdf5 from ~BYRN/hdf5_adb:hdf5_1_10 to hdf5_1_10

* commit '88082cce109b27efb885971fca87224e16b62879':
  Remove system command from valgrind reports
  Fix h5ls attrreg
  Fixed region refs
  h5dump object reference fixed
  Updated reference code
  Fix gif2h5 tool build on windows
  Merge CMake and tools changes from develop