Update Jetty version to 9.2.1.v20140609

David Ostrovsky

2014-06-17 f4519c0aa35d507fd54664fbdcacacc8240815ed

 src/main/java/com/gitblit/GitBlitServer.java

@@ -198,7 +198,9 @@
            e.printStackTrace();
         } finally {
            try {
               is.close();
               if (is != null) {
                  is.close();
               }
            } catch (IOException e) {
               e.printStackTrace();
            }