util.*: Remove use of module() function, make all module functions local and return them in a table at the end

author: Kim Alvefur <zash@zash.se>
date: Sat, 21 Feb 2015 10:36:37 +0100
parent: 6672:d6a60e74f773
child: 6829:22522443982f
--- a/util/dataforms.lua	Mon Aug 10 22:16:05 2015 +0200
+++ b/util/dataforms.lua	Sat Feb 21 10:36:37 2015 +0100
@@ -13,14 +13,14 @@
 local st = require "util.stanza";
 local jid_prep = require "util.jid".prep;
 
-module "dataforms"
+local _ENV = nil;
 
 local xmlns_forms = 'jabber:x:data';
 
 local form_t = {};
 local form_mt = { __index = form_t };
 
-function new(layout)
+local function new(layout)
 	return setmetatable(layout, form_mt);
 end
 
@@ -238,7 +238,9 @@
 		return field_tag:get_child_text("value");
 	end
 
-return _M;
+return {
+	new = new;
+};
 
 
 --[=[