redirect support alloc session

examples/main.lua

@@ -9,7 +9,6 @@ skynet.start(function()
 	if not skynet.getenv "daemon" then
 		local console = skynet.newservice("console")
 	end
---[[
 	skynet.newservice("debug_console",8000)
 	skynet.newservice("simpledb")
 	local watchdog = skynet.newservice("watchdog")
@@ -19,6 +18,5 @@ skynet.start(function()
 		nodelay = true,
 	})
 	skynet.error("Watchdog listen on", 8888)
-]]
 	skynet.exit()
 end)