use opam 2.0 file format

Author: Jan Rochel

opam

@@ -1,9 +1,9 @@
-opam-version: "1.2"
-author: "[email protected]"
+opam-version: "2.0"
+synopsis: "DSL for SQL Queries in Caml"
 maintainer: "[email protected]"
 homepage: "https://github.com/ocsigen/macaque"
 bug-reports: "https://github.com/ocsigen/macaque/issues"
-dev-repo: "https://github.com/ocsigen/macaque.git"
+dev-repo: "git+https://github.com/ocsigen/macaque.git"
 version: "dev"
 build: [
   ["./configure" "--prefix" prefix]
@@ -12,8 +12,11 @@ build: [
 install: [ make "install" ]
 remove: [ "ocamlfind" "remove" "macaque" ]
 depends: [
+  "ocaml"
   "ocamlfind" {build}
   "pgocaml" {>= "2.2"}
   "oasis" {>= "0.4.4"}
   "camlp4"
 ]
+authors: "[email protected]"
+flags: light-uninstall