remove the weird ice redefinition, fix readme and use minetest.override_item to short the code

README.txt

@@ -1,3 +1,2 @@
 TODO:
-— add titanium glass
 — add more glass

init.lua

@@ -1,18 +1,4 @@
 local load_time_start = os.clock()
-local function connect_glass(node, img)
-	local tmp = minetest.registered_nodes[node]
-	if not tmp then
-		return
-	end
-	if tmp.tile_images then
-		tmp.tile_images = img
-	else
-		tmp.tiles = img
-	end
-	tmp.drawtype = "glasslike_framed"
-	minetest.register_node(":"..node, tmp)
-end
-
 
 local glass_list = {
 	["default:glass"] = {"default_glass.png", "connected_textures_glass_stripes.png"},
@@ -27,18 +13,10 @@ local glass_list = {
 	["titanium:glass"] = {"titanium_glass.png", "connected_textures_titanium_glass_stripes.png"},
 }
 
-for nd,tex in pairs(glass_list) do
-	connect_glass(nd, tex)
+for node,img in pairs(glass_list) do
+	if minetest.registered_nodes[node] then
+		minetest.override_item(node, {tiles = img, drawtype = "glasslike_framed"})
+	end
 end
 
-
-minetest.register_node(":default:ice", {
-	description = "Ice",
-	tiles = {"connected_textures_ice.png"},
-	is_ground_content = true,
-	use_texture_alpha = true,
-	paramtype = "light",
-	groups = {cracky=3},
-	sounds = default.node_sound_glass_defaults(),
-})
 print(string.format("[connected_textures] loaded after ca. %.2fs", os.clock() - load_time_start))