RamDB: fix loops

ramdb.js

@@ -10,7 +10,7 @@ function init() {
 
 function domainExists(domain) {
 	return new Promise((resolve, reject) => {
-		for (record in ramDB) {
+		for (let record in ramDB) {
 			if (record.domain == domain) {
 				resolve(true);
 				return;
@@ -34,7 +34,7 @@ function registerDomain(domain, token) {
 
 function getDomain(token) {
 	return new Promise((resolve, reject) => {
-		for (record in ramDB) {
+		for (let record in ramDB) {
 			if (record.token == token) {
 				resolve(record);
 				return;
@@ -46,7 +46,7 @@ function getDomain(token) {
 
 function updateDomain(domain, token, ip) {
 	return new Promise((resolve, reject) => {
-		for (record in ramDB) {
+		for (let record in ramDB) {
 			if (record.domain == domain) {
 				record.token = token;
 				record.ip = ip;