Fixed chat

It now has a userID again,
displays which user you are chatting withhover over user changes different background

website/public/API/loadMessages.php

@@ -0,0 +1,11 @@
+<?php
+
+include_once("../../queries/private_message.php");
+
+if (isset($_POST["lastID"]) && $_POST["lastID"] != "") {
+
+    echo getNewChatMessages($_POST["lastID"], $_POST["destination"]);
+
+} else {
+    echo getOldChatMessages($_POST["destination"]);
+}