Mod refresh and remove intllib support to Minetest translator

- Remove depends.txt
- Update mod.conf
- Add settingtypes.txt for interval between two subsequent messages

init.lua

@@ -13,9 +13,18 @@ math.randomseed(os.time())
 random_messages = {}
 random_messages.messages = {} --This table contains all messages.
 
--- Load support for intllib.
-local MP = minetest.get_modpath(minetest.get_current_modname())
-local S, NS = dofile(MP.."/intllib.lua")
+local S
+if minetest.get_translator ~= nil then
+	S = minetest.get_translator("random_messages")
+else
+	S = function(str, ...)
+		local args={...}
+		return str:gsub(
+			"@%d+",
+			function(match) return args[tonumber(match:sub(2))]	end
+		)
+	end
+end
 
 function table.count( t )
 	local i = 0
@@ -32,14 +41,8 @@ function table.random( t )
 	end
 end
 
-function random_messages.initialize() --Set the interval in minetest.conf.
-	minetest.settings:set("random_messages_interval",120)
-	minetest.settings:write();
-	return 120
-end
-
 function random_messages.set_interval() --Read the interval from minetest.conf(set it if it doesn'st exist)
-	MESSAGE_INTERVAL = tonumber(minetest.settings:get("random_messages_interval")) or random_messages.initialize()
+	MESSAGE_INTERVAL = tonumber(minetest.settings:get("random_messages_interval") or 120)
 end
 
 function random_messages.check_params(name,func,params)
@@ -62,8 +65,8 @@ function random_messages.read_messages()
 		local output = io.open(minetest.get_worldpath().."/random_messages","w")
 		if not default_input then
 			-- blame the admin if not found
-			output:write(S("Blame the server admin! He/She has probably not edited the random messages yet.\n"))
-			output:write(S("Tell your dumb admin that this line is in (worldpath)/random_messages\n"))
+			output:write(S("Blame the server admin! He/She has probably not edited the random messages yet.").."\n")
+			output:write(S("Tell your dumb admin that this line is in (worldpath)/random_messages").."\n")
 			return
 		else
 			-- or write default_input content in worldpath message file