Add opam file and reflect ocamlfind >=1.5 dependency.

whitequark · whitequark · commit 4d771fb42f6c · 2014-06-24T08:18:32.000+04:00
diff --git a/opam b/opam
@@ -0,0 +1,9 @@
+opam-version: "1"
+maintainer: "alain.frisch@lexifi.com"
+build: [
+  [make "all"]
+  [make "install"]
+]
+remove: [["ocamlfind" "remove" "ppx_tools"]]
+depends: ["ocamlfind" {>= "1.5.0"}]
+ocaml-version: [>= "4.02.0"]
