[new release] tcpip (4.0.0)
[new release] tcpip (4.0.0)

CHANGES:

* Adapt to mirage-protocols 4.0.0, mirage-net 3.0.0, mirage-time 2.0.0,
  mirage-clock 3.0.0, mirage-stack 2.0.0 interface changes (mirage/mirage-tcpip#420 @hannesm)
* Revise Static_ipv4.connect signature (for more safety):
  val connect : ip:(Ipaddr.V4.Prefix.t * Ipaddr.V4.t) -> ?gateway:Ipaddr.V4.t ->
                ?fragment_cache_size:int -> E.t -> A.t -> t Lwt.t
  it used to be:
  val connect : ?ip:Ipaddr.V4.t -> ?network:Ipaddr.V4.Prefix.t ->
                ?gateway:Ipaddr.V4.t option -> C.t -> E.t -> A.t -> t Lwt.t
  The clock `C.t` is gone (due to mirage-clock 3.0.0), `~ip` and `~network` are
  now required and passed as pair `~ip`. The optional argument `?gateway` is
  of type Ipaddr.V4.t. The new optional labeled argument `~fragment_cache_size`
  specifies the byte size of the IPv4 fragment cache (mirage/mirage-tcpip#420 @hannesm)

seliopou/opam-repository,lefessan/opam-repository,lefessan/opam-repository,Leonidas-from-XIV/opam-repository,andersfugmann/opam-repository,pirbo/opam-repository,nberth/opam-repository,emillon/opam-repository,dbuenzli/opam-repository,yallop/opam-repository,hannesm/opam-repository,nberth/opam-repository,djs55/opam-repository,arlencox/opam-repository,hakuch/opam-repository,kkirstein/opam-repository,Chris00/opam-repository,jonludlam/opam-repository,toots/opam-repository,avsm/opam-repository,orbitz/opam-repository,ocaml/opam-repository,fpottier/opam-repository,AltGr/opam-repository,camlspotter/opam-repository,Leonidas-from-XIV/opam-repository,emillon/opam-repository,dra27/opam-repository,hannesm/opam-repository,yallop/opam-repository,toots/opam-repository,jonludlam/opam-repository,camlspotter/opam-repository,pqwy/opam-repository,andersfugmann/opam-repository,jhwoodyatt/opam-repository,AltGr/opam-repository,c-cube/opam-repository,pirbo/opam-repository,talex5/opam-repository,djs55/opam-repository,avsm/opam-repository,Chris00/opam-repository,c-cube/opam-repository,pqwy/opam-repository,dbuenzli/opam-repository,fpottier/opam-repository,codinuum/opam-repository,astrada/opam-repository,mjambon/opam-repository,seliopou/opam-repository,kkirstein/opam-repository,jhwoodyatt/opam-repository,ocaml/opam-repository,talex5/opam-repository,mjambon/opam-repository,codinuum/opam-repository,abate/opam-repository,cakeplus/opam-repository,dra27/opam-repository,astrada/opam-repository