use nexedi's BOSH

fullscreen.html

@@ -51,7 +51,7 @@
         authentication: 'login',
         auto_away: 300,
         auto_reconnect: true,
-        bosh_service_url: 'https://conversejs.org/http-bind/', // Please use this connection manager only for testing purposes
+        bosh_service_url: 'https://mail.nexedi.net/chat/http-bind/',
         message_archiving: 'always',
         view_mode: 'fullscreen'
     });