[new release] x509 (0.8.0)

CHANGES:

* export X509.Distinguished_name.common_name : t -> string option, which
  extracts the common name of a distinguished name
* Distinguished_name.t is now a Relative_distinguished_name.t list, a
  Relative_distinguished_name is a Set.S with element type attribute, a variant.
  It used to be an attribute (expressed as GADT) Gmap.t, but this representation
  did not conform to RFC 5280, reported by @paurkedal (mirleft/ocaml-x509#117, fixed by mirleft/ocaml-x509#118)
* Now using Set.find_first_opt, which bumps lower OCaml bound to 4.05.0
* Improved pretty-printing for DNs including RFC 4514 conformance (@paurkedal, mirleft/ocaml-x509#119).
* Extension.pp now outputs extension key and its value (mirleft/ocaml-x509#120)
* rename Distinguished_name.SP constructor (stateOrProvince) to ST, as widely used (mirleft/ocaml-x509#121)
* support Street and UID in Distinguished_name to satisfy RFC 4514 demands (mirleft/ocaml-x509#121)

packages/x509/x509.0.8.0/opam

@@ -0,0 +1,51 @@
+opam-version: "2.0"
+maintainer: [
+  "Hannes Mehnert <hannes@mehnert.org>"
+]
+authors: [
+  "Hannes Mehnert <hannes@mehnert.org>"
+  "David Kaloper <dk505@cam.ac.uk>"
+]
+license: "BSD2"
+tags: "org:mirage"
+homepage: "https://github.com/mirleft/ocaml-x509"
+doc: "https://mirleft.github.io/ocaml-x509/doc"
+bug-reports: "https://github.com/mirleft/ocaml-x509/issues"
+depends: [
+  "ocaml" {>= "4.05.0"}
+  "dune" {>= "1.2"}
+  "cstruct" {>= "4.0.0"}
+  "asn1-combinators" {>= "0.2.0"}
+  "ptime"
+  "nocrypto" {>= "0.5.3"}
+  "rresult"
+  "fmt"
+  "alcotest" {with-test}
+  "cstruct-unix" {with-test & >= "3.0.0"}
+  "gmap" {>= "0.3.0"}
+  "domain-name" {>= "0.3.0"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirleft/ocaml-x509.git"
+synopsis: "Public Key Infrastructure (RFC 5280, PKCS) purely in OCaml"
+description: """
+X.509 is a public key infrastructure used mostly on the Internet.  It consists
+of certificates which include public keys and identifiers, signed by an
+authority. Authorities must be exchanged over a second channel to establish the
+trust relationship. This library implements most parts of RFC5280 and RFC6125.
+The Public Key Cryptography Standards (PKCS) defines encoding and decoding
+(in ASN.1 DER and PEM format), which is also implemented by this library -
+namely PKCS 1, PKCS 7, PKCS 8, PKCS 9 and PKCS 10.
+"""
+url {
+  src:
+    "https://github.com/mirleft/ocaml-x509/releases/download/v0.8.0/x509-v0.8.0.tbz"
+  checksum: [
+    "sha256=f9bf0b8a4392486f055b97860aeff8ef11fe0fade6ab23dc7bf5a7ebf1b8eb96"
+    "sha512=487121d9d4cf64de3dab5cf5379a5d7b8d38f959d9daddb1431a309ec4ea09212892490802255b7d49dd89f4c8513aade06f89f2fd912c468746234c04ae3f80"
+  ]
+}