Add version 4.0-2 version of the ZMQ bindings
+libres3 v0.2
Merge pull request #2069 from edwintorok/libres3.0.2

+libres3 v0.2
Merge pull request #2066 from andersfugmann/master

Add version 4.0-2 version of the ZMQ bindings
Merge branch 'master' of github.com:ocaml/opam-repository
maildir url set to a stable git tag