--- a/util/serialization.lua	Mon Aug 10 22:16:05 2015 +0200
+++ b/util/serialization.lua	Sat Feb 21 10:36:37 2015 +0100
@@ -20,7 +20,7 @@
 local log = require "util.logger".init("serialization");
 local envload = require"util.envload".envload;
 
-module "serialization"
+local _ENV = nil;
 
 local indent = function(i)
 	return string_rep("\t", i);
@@ -71,16 +71,16 @@
 	end
 end
 
-function append(t, o)
+local function append(t, o)
 	_simplesave(o, 1, t, t.write or t_insert);
 	return t;
 end
 
-function serialize(o)
+local function serialize(o)
 	return t_concat(append({}, o));
 end
 
-function deserialize(str)
+local function deserialize(str)
 	if type(str) ~= "string" then return nil; end
 	str = "return "..str;
 	local f, err = envload(str, "@data", {});
@@ -90,4 +90,8 @@
 	return ret;
 end
 
-return _M;
+return {
+	append = append;
+	serialize = serialize;
+	deserialize = deserialize;
+};