Improve error message with odd number of characters (#35 @dialohq)
Raise lower bound to OCaml 4.08 (#37 @hannesm)
Remove bigarray-compat dependency (#37 @hannesm)
Remove "build" from dune dependency (#34 @CraigFE)
Improve documentation of of_string (#37 @hannesm, fixes #33 #36)
v1.4.0 2019-03-28
Drop the hard dependency on unix that is transitively brought in by cstruct/bigarray. This is done by using the new bigarray-compat opam package that does the right thing on OCaml 4.07+ to not depend on unix. On older OCaml compilers the dependency will still be there and must be manually dropped with -dontlink, but we encourage users to use a newer compiler (#29 @TheLortex)