Get files from CDN (#1015)

demo/embedded.html

@@ -9,15 +9,15 @@
     <meta name="author" content="JC Brand" />
     <meta name="keywords" content="xmpp chat webchat converse.js" />
     <link rel="shortcut icon" type="image/ico" href="../css/images/favicon.ico"/>
-    <link type="text/css" rel="stylesheet" media="screen" href="../node_modules/bootstrap/dist/css/bootstrap.min.css" />
-    <link type="text/css" rel="stylesheet" media="screen" href="../node_modules/font-awesome/css/font-awesome.min.css" />
+    <link type="text/css" rel="stylesheet" media="screen" href="https://cdn.conversejs.org/node_modules/bootstrap/dist/css/bootstrap.min.css" />
+    <link type="text/css" rel="stylesheet" media="screen" href="https://cdn.conversejs.org/node_modules/font-awesome/css/font-awesome.min.css" />
     <link type="text/css" rel="stylesheet" media="screen" href="https://cdn.conversejs.org/css/theme.min.css" />
     <link type="text/css" rel="stylesheet" media="screen" href="https://cdn.conversejs.org/css/converse.min.css" />
     <link type="text/css" rel="stylesheet" media="screen" href="https://cdn.conversejs.org/css/converse-muc-embedded.min.css" />
-    <script type="text/javascript" src="../analytics.js"></script>
+    <script type="text/javascript" src="https://cdn.conversejs.org/analytics.js"></script>
     <noscript><p><img src="//stats.opkode.com/piwik.php?idsite=1" style="border:0;" alt="" /></p></noscript>
     <![if gte IE 9]>
-        <script src="../dist/converse-muc-embedded.min.js"></script>
+        <script src="https://cdn.conversejs.org/dist/converse-muc-embedded.min.js"></script>
     <![endif]>
 </head>