Update Jetty version to 9.2.1.v20140609

David Ostrovsky

2014-06-17 f4519c0aa35d507fd54664fbdcacacc8240815ed

 src/main/java/com/gitblit/manager/GitblitManager.java

@@ -661,6 +661,11 @@
    */

   @Override
   public boolean isSendingMail() {
      return notificationManager.isSendingMail();
   }

   @Override
   public void sendMailToAdministrators(String subject, String message) {
      notificationManager.sendMailToAdministrators(subject, message);
   }