Update jQuery to 1.9.1

Author: enderandpeter

index.php

@@ -74,7 +74,7 @@
         <meta http-equiv="X-UA-Compatible" content="IE=edge" />
         <title>Debug Console</title>
         <link rel="stylesheet" type="text/css" href="styles.css" />
-        <script src="jquery-1.7.1.min.js"></script>
+        <script src="jquery-1.9.1.min.js"></script>
         <script src="ace/ace.js" charset="utf-8"></script>
         <script src="ace/mode-php.js" charset="utf-8"></script>
         <script src="php-console.js"></script>