Remove included Lua and LuaSocket source

Also rename README.txt to README.md and update it.

player_part.lua

@@ -0,0 +1,69 @@
+-- This file is licensed under the terms of the BSD 2-clause license.
+-- See LICENSE.txt for details.
+
+
+function mt_irc:player_part(name)
+	if not self.joined_players[name] then
+		minetest.chat_send_player(name, "IRC: You are not in the channel.")
+		return
+	end
+	self.joined_players[name] = nil
+	minetest.chat_send_player(name, "IRC: You are now out of the channel.")
+end
+ 
+function mt_irc:player_join(name)
+	if self.joined_players[name] then
+		minetest.chat_send_player(name, "IRC: You are already in the channel.")
+		return
+	end
+	self.joined_players[name] = true
+	minetest.chat_send_player(name, "IRC: You are now in the channel.")
+end
+
+
+minetest.register_chatcommand("join", {
+	description = "Join the IRC channel",
+	privs = {shout=true},
+	func = function(name, param)
+		mt_irc:player_join(name)
+	end
+})
+ 
+minetest.register_chatcommand("part", {
+	description = "Part the IRC channel",
+	privs = {shout=true},
+	func = function(name, param)
+		mt_irc:player_part(name)
+	end
+})
+ 
+minetest.register_chatcommand("who", {
+	description = "Tell who is currently on the channel",
+	privs = {},
+	func = function(name, param)
+		local s = ""
+		for name, _ in pairs(mt_irc.joined_players) do
+			s = s..", "..name
+		end
+		minetest.chat_send_player(name, "Players On Channel:"..s)
+	end
+})
+
+ 
+minetest.register_on_joinplayer(function(player)
+	local name = player:get_player_name()
+	mt_irc.joined_players[name] = mt_irc.config.auto_join
+end)
+ 
+ 
+minetest.register_on_leaveplayer(function(player)
+	local name = player:get_player_name()
+	mt_irc.joined_players[name] = nil
+end)
+
+function mt_irc:sendLocal(message)
+        for name, _ in pairs(self.joined_players) do
+		minetest.chat_send_player(name, message)
+	end
+end
+