Configure form element and move xmpp config

app/assets/javascripts/jsxc.js

@@ -24,6 +24,11 @@ $(document).ready(function() {
           displayRosterMinimized: function() {
             return true;
           },
+          loginForm: {
+            form: '#jsxc_loginForm'
+          },
+          loadSettings: function() {
+            return {
               xmpp: {
                 url: $('script#jsxc').data('endpoint'),
                 username: jid.replace(/@.*?$/g, ''),
@@ -34,6 +39,8 @@ $(document).ready(function() {
                 overwrite: true,
                 onlogin: true
               }
+            }
+          }
         });
       } else {
         console.error('No token found! Authenticated!?');