This is a small technical PR that removes warnings produced by the latest OCaml. We also switch to bitstrings.4.x since this version is available for OCaml 4.08 and above so it covers all available versions. (the opam-repository will be correspondingly updated).
This is a small technical PR that removes warnings produced by the latest OCaml. We also switch to bitstrings.4.x since this version is available for OCaml 4.08 and above so it covers all available versions. (the opam-repository will be correspondingly updated).