polished echo recording event and other type of message as well.

procEcho.go

 		m := in.body.(PicMsg)
 		str = buildPicMsg(openID, m.MediaId)
 		in.replyXML(str)
+		procEchoRecordMsg(ss, "图片：..")
 	case VoiceMsg:
 		m := in.body.(VoiceMsg)
 		str = buildVoiceMsg(openID, m.MediaId)
 		m := in.body.(VideoMsg)
 		str = buildVideoMsg(openID, "e2iNEiSxCX5TV1WbFd0TQMn5lilY3bylh1--lDBwi7I", "航拍春日哈工大", m.MediaId)
 		in.replyXML(str)
+		procEchoRecordMsg(ss, "视频：..")
 	case ShortVideoMsg:
 		m := in.body.(ShortVideoMsg)
 		str = buildVideoMsg(openID, "e2iNEiSxCX5TV1WbFd0TQMn5lilY3bylh1--lDBwi7I", "航拍春日哈工大", m.MediaId)
 		in.replyXML(str)
+		procEchoRecordMsg(ss, "小视频：..")
 	case LocationMsg:
 		m := in.body.(LocationMsg)
 		mid := location2MediaID(m.Location_X, m.Location_Y)
 		in.replyXML(str)
 		url := location2URL(m.Location_X, m.Location_Y)
 		kfSendTxt(openID, url+"\n"+fmt.Sprintf("long=%f, lat=%f, scale=%d", m.Location_X, m.Location_Y, m.Scale))
+		procEchoRecordMsg(ss, "坐标：..")
 	case LinkMsg:
 		m := in.body.(LinkMsg)
 		str, _ = BuildTextMsg(openID, m.Url)
 		in.replyXML(str)
 		kfSendTxt(openID, m.Title+m.Description)
+		procEchoRecordMsg(ss, "链接："+m.Title)
 	case EventMsg:
-		echoEvents(in)
+		echoEvents(ss, in)
 	default:
 		str, err = BuildTextMsg(openID, "text message")
 	}
 	return
 }
 
-func echoEvents(in InWechatMsg) {
+func echoEvents(ss *openIDSessionData, in InWechatMsg) {
 	openID := in.header.FromUserName
 	str := ""
 	m := in.body.(EventMsg)
-	log.Println("Event = " + m.Event)
+	//log.Println("Event = " + m.Event)
+	procEchoRecordMsg(ss, "事件："+m.Event)
 	switch m.Event {
 	case "LOCATION":
 		mid := location2MediaID(m.Latitude, m.Longitude)