Add licensing headers to all files.

aliases.lua

@@ -1,4 +1,11 @@
--- Aliases
+--[[
+======================================================================
+This file is part of Map Tools.
+
+Copyright (c) 2012-2015 Calinou and contributors.
+Licensed under the zlib license. See LICENSE.md for more information.
+======================================================================
+--]]
 
 minetest.register_alias("adminpick", "maptools:pick_admin")
 minetest.register_alias("adminpickaxe", "maptools:pick_admin")
@@ -69,8 +76,6 @@ minetest.register_alias("fake_fire", "maptools:fake_fire")
 minetest.register_alias("ffire", "maptools:fake_fire")
 minetest.register_alias("igniter", "maptools:igniter")
 
--- Unbreakable block aliases
-
 minetest.register_alias("stone_u", "maptools:stone")
 minetest.register_alias("tree_u", "maptools:tree")
 minetest.register_alias("cobble_u", "maptools:cobble")

config.lua

@@ -1,3 +1,12 @@
+--[[
+======================================================================
+This file is part of Map Tools.
+
+Copyright (c) 2012-2015 Calinou and contributors.
+Licensed under the zlib license. See LICENSE.md for more information.
+======================================================================
+--]]
+
 maptools.config = {}
 
 local function getbool_default(setting, default)

craftitems.lua

@@ -1,3 +1,12 @@
+--[[
+======================================================================
+This file is part of Map Tools.
+
+Copyright (c) 2012-2015 Calinou and contributors.
+Licensed under the zlib license. See LICENSE.md for more information.
+======================================================================
+--]]
+
 local S = maptools.intllib
 
 maptools.creative = maptools.config["hide_from_creative_inventory"]

default_nodes.lua

@@ -1,3 +1,12 @@
+--[[
+======================================================================
+This file is part of Map Tools.
+
+Copyright (c) 2012-2015 Calinou and contributors.
+Licensed under the zlib license. See LICENSE.md for more information.
+======================================================================
+--]]
+
 local S = maptools.intllib
 
 maptools.creative = maptools.config["hide_from_creative_inventory"]

init.lua

@@ -4,7 +4,7 @@
 By Calinou.
 
 Copyright (c) 2012-2014 Calinou and contributors.
-Licensed under the zlib license. See LICENSE.txt for more information.
+Licensed under the zlib license. See LICENSE.md for more information.
 ======================================================================
 --]]
 

nodes.lua

@@ -1,3 +1,12 @@
+--[[
+======================================================================
+This file is part of Map Tools.
+
+Copyright (c) 2012-2015 Calinou and contributors.
+Licensed under the zlib license. See LICENSE.md for more information.
+======================================================================
+--]]
+
 local S = maptools.intllib
 
 maptools.creative = maptools.config["hide_from_creative_inventory"]

tools.lua

@@ -1,3 +1,12 @@
+--[[
+======================================================================
+This file is part of Map Tools.
+
+Copyright (c) 2012-2015 Calinou and contributors.
+Licensed under the zlib license. See LICENSE.md for more information.
+======================================================================
+--]]
+
 local S = maptools.intllib
 
 maptools.creative = maptools.config["hide_from_creative_inventory"]