fix misstyped passwords leaked in log files with redmine auth provider

mereth

2014-08-18 2445d4b2b80671bdcefbd4ed81f394a5249ee13d

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

@@ -71,6 +71,11 @@
      return this;
   }

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

   /**
    * Notify the administrators by email.
    *