rewrite makefile, and remove luacode cache.

test/pingserver.lua

@@ -0,0 +1,26 @@
+local skynet = require "skynet"
+
+local command = {}
+
+function command.PING(hello)
+	skynet.ret(skynet.pack(hello))
+end
+
+function command.HELLO()
+	skynet.sleep(100)
+	skynet.ret(skynet.pack("hello"))
+end
+
+function command.EXIT()
+	skynet.exit()
+end
+
+function command.ERROR()
+	error "throw an error"
+end
+
+skynet.start(function()
+	skynet.dispatch("lua", function(session,addr, cmd, ...)
+		command[cmd](...)
+	end)
+end)