[re6stnet] Include experimental components for re6st and babel

  Like slapos component, this is way to install re6stnet using buildout,
  if it is an experimental way to run it for now.
[re6stnet] Include path for find the right babeld command
version up eggs.
version up libpng 1.2.52, 1.5.21, 1.6.15.
version up : libpng 1.6.16.
version up : hexagonit.recipe.download 1.7nxd003 to support .lz archives.
version up : wget 1.16.1.
version up : gettext 0.19.4.
add lunzip.