update some commands to the new notification system

....there's a bug in run_command tho with respect to return value handling

worldeditadditions/lib/selection/selection.lua

@@ -62,9 +62,9 @@ function selection.add_point(name, newpos)
 		
 		-- Done automatically
 		-- worldedit.marker_update(name)
-		worldedit.player_notify(name, msg)
+		wea_c.notify.ok(name, msg)
 	else
-		worldedit.player_notify(name, "Error. Too far away (try raising your maxdist with //farwand maxdist <number>)")
+		wea_c.notify.error(name, "Error. Too far away (try raising your maxdist with //farwand maxdist <number>)")
 		-- print("[set_pos1]", name, "nil")
 	end
 end
@@ -76,7 +76,7 @@ function selection.clear_points(name)
 	wea_c.pos.clear(name)
 	-- worldedit.marker_update(name)
 	
-	worldedit.player_notify(name, "Region cleared")
+	wea_c.notify.ok(name, "Region cleared")
 end
 
 --- Checks if a string is a valid axis.

worldeditadditions_commands/commands/extra/saplingaliases.lua

@@ -17,6 +17,8 @@ minetest.register_chatcommand("/saplingaliases", {
 		
 		local msg = {}
 		
+		local mode = "info"
+		
 		if params_text == "aliases" then
 			table.insert(msg, "Currently registered aliases:\n")
 			local aliases = wea_c.get_all_sapling_aliases()
@@ -32,10 +34,13 @@ minetest.register_chatcommand("/saplingaliases", {
 			local str = table.concat(results, "\n")
 			table.insert(msg, str)
 		else
+			mode = "error"
 			table.insert(msg, "Unknown mode '")
 			table.insert(msg, params_text)
 			table.insert(msg, "' (valid modes: aliases, all_saplings).")
 		end
-		worldedit.player_notify(name, table.concat(msg))
+		
+		-- Don't forget to update this 
+		wea_c.notify(name, mode, table.concat(msg))
 	end
 })

worldeditadditions_commands/commands/extra/sculptlist.lua

@@ -53,6 +53,6 @@ minetest.register_chatcommand("/sculptlist", {
 			table.insert(msg, wea_c.format.make_ascii_table(display))
 		end
 		
-		worldedit.player_notify(name, table.concat(msg))
+		wea_c.notify.info(name, table.concat(msg))
 	end
 })

worldeditadditions_commands/commands/meta/for.lua

@@ -1,3 +1,5 @@
+local wea_c = worldeditadditions_core
+
 -- ███████  ██████  ██████
 -- ██      ██    ██ ██   ██
 -- █████   ██    ██ ██████
@@ -13,7 +15,6 @@
 -- ?Basename support for values
 -- ?Comma deliniation support for values
 
-local wea_c = worldeditadditions_core
 local function step(params)
 	-- Initialize additional params on first call
 	if not params.first then
@@ -38,7 +39,7 @@ local function step(params)
 		-- If we haven't run out of values call function again
 		minetest.after(0, step, params)
 	else
-		worldedit.player_notify(params.player_name, "For "..
+		wea_c.notify.ok(params.player_name, "For "..
 			table.concat(params.values,", ")..
 			", /"..params.cmd_name.." completed in " ..
 			wea_c.format.human_time(params.time))

worldeditadditions_commands/commands/metaball.lua

@@ -86,8 +86,7 @@ worldeditadditions_core.register_command("metaball", {
 			local success, value = wea.metaballs.volume(name)
 			
 			if not success then
-				worldedit.player_notify(name, value)
+				return false, value
-				return -1
 			end
 			
 			return value