Fix h5 serialization: no test for old hdf5

- if version is  < 1.8.9, the test is ignored.
Serialization boost/h5 and clean parameters

- parameters : clean, add back serialization. Clean whitespace

- serialization : depending on the version of the hdf5 lib,
  uses h5 or boost.

- TODO : test it on a machine with new hdf5.