Log Message:
Updated package to latest version, 2.8.0. Changes include:

Port to Jbuilder (#65 @vbmithr @avsm). There should be no observable changes,
except that Ipaddr_unix is now in a separate subdirectory. This means that
packages that implicitly depended on the module without including the
ocamlfind ipaddr.unix package may now fail. Just adding the ocamlfind
dependency will fix it, and is backwards compatible with older Ipaddr
releases.

Minimum version of OCaml required is now 4.03.0 (formerly was 4.02.2), due to
the use of recent ppx_sexp_conv with Jbuilder also having that as the minimum
supported compiler version.