update version

Author: craff

pacomb.opam

@@ -45,7 +45,7 @@ All this makes Pacomb a promising solution to write languages in OCaml.
 """
 
 opam-version: "2.0"
-version: "1.4"
+version: "1.4.1"
 maintainer: "Christophe Raffalli <[email protected]>"
 bug-reports: "https://github.com/craff/pacomb/issues"
 homepage: "https://github.com/craff/pacomb"