hdf5

Merge pull request #678 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:hdf5_1_8 to hdf5_1_8

* commit 'c3791263681e318f1115b860c2df20684129a710':
  reconfigure needed after commit of test/Makefile.am on 8/22/2017. Snap version in configure file was incorrect due to merges. reconfigure changed comments in H5LTparse.c and .h.