Replace deprecated functions with newer ones.

- Update api.lua

- Store bags on player metadata

- Update register.lua

- Update mod.conf

These commits makes more compatibility with MT/MTG 5.0.0+ versions.
However, these commits breaks compatibility with the 0.4-series.

api.lua

@@ -187,7 +187,7 @@ end
 function unified_inventory.go_home(player)
 	local pos = unified_inventory.home_pos[player:get_player_name()]
 	if pos then
-		player:setpos(pos)
+		player:set_pos(pos)
 	end
 end
 

bags.lua

@@ -1,7 +1,9 @@
--- Bags for Minetest
+--[[ 
+Bags for Minetest
 
--- Copyright (c) 2012 cornernote, Brett O'Donnell <cornernote@gmail.com>
--- License: GPLv3
+Copyright (c) 2012 cornernote, Brett O'Donnell <cornernote@gmail.com>
+License: GPLv3
+--]]
 
 local S = unified_inventory.gettext
 local F = minetest.formspec_escape
@@ -119,16 +121,18 @@ local function save_bags_metadata(player, bags_inv)
 		end
 	end
 	if is_empty then
-		player:set_attribute("unified_inventory:bags", nil)
+		local meta = player:get_meta()
+		meta:set_string("unified_inventory:bags", nil)
 	else
-		player:set_attribute("unified_inventory:bags",
+		meta:set_string("unified_inventory:bags",
 			minetest.serialize(bags))
 	end
 end
 
 local function load_bags_metadata(player, bags_inv)
 	local player_inv = player:get_inventory()
-	local bags_meta = player:get_attribute("unified_inventory:bags")
+	local meta = player:get_meta()
+	local bags_meta = meta:get_string("unified_inventory:bags")
 	local bags = bags_meta and minetest.deserialize(bags_meta) or {}
 	local dirty_meta = false
 	if not bags_meta then

mod.conf

@@ -1 +1,4 @@
 name = unified_inventory
+depends = default
+optional_depends = creative, sfinv, intllib, datastorage, farming
+description = Unified Inventory replaces the default survival and creative inventory. It adds a nicer interface and a number of features, such as a crafting guide.

register.lua

@@ -48,7 +48,7 @@ unified_inventory.register_button("home_gui_set", {
 	action = function(player)
 		local player_name = player:get_player_name()
 		if minetest.check_player_privs(player_name, {home=true}) then
-			unified_inventory.set_home(player, player:getpos())
+			unified_inventory.set_home(player, player:get_pos())
 			local home = unified_inventory.home_pos[player_name]
 			if home ~= nil then
 				minetest.sound_play("dingdong",