temp echo to make sure it does not show 'unavailable'

serveEvents.go

@@ -13,10 +13,13 @@ func (ss *openIDSessionData) serveEvents(in InWechatMsg) (processed bool) {
 		onUnSubscribe(in)
 		return
 	case "SCAN":
+		in.replyText("SCAN/" + e.EventKey)
 	case "LOCATION":
 		in.replyText("LOCATION")
 	case "CLICK":
+		in.replyText("CLICK/" + e.EventKey)
 	case "VIEW":
+		in.replyText("CLICK" + e.EventKey)
 	case "TEMPLATESENDJOBFINISH":
 		// <xml><ToUserName><![CDATA[gh_f09231355c68]]></ToUserName>
 		// <FromUserName><![CDATA[oUN420Wj78vnkNeAJY7RMPXA28oc]]></FromUserName>