hdf5_ep

Merge pull request #85 in HDFFV/hdf5 from ~BYRN/hdf5_adb:hdf5_1_8 to hdf5_1_8

* commit '0235ea066df4f60a9fd3f0237eeea5e38b135d69':
  Change return statement format
  Revert "Add defines that are missing on OSX"
  Add defines that are missing on OSX
  Revert "merge include chnages from trunk"
  Revert "Correct signature"
  Correct signature
  merge include chnages from trunk
  Update windows test machine
  Add h5repack paragraph
  Correct 1.8 version of reference file
  Add test for 1.8 version of testlib
  Add new testlib to makefile
  Remove attributes
  Fix reference file value
  revert back reference file
  Add new testlib to copy
  Add new test file for UD filters