Updated Polish translation for 1.3.1

Lukasz Jader

2013-07-21 29968c39d538e4466a52fc9128fd6d4717f34f4a

 src/main/java/com/gitblit/LogoServlet.java

@@ -76,6 +76,7 @@
            contentType = "image/png";

         }

         response.setContentType(contentType);

         response.setHeader("Cache-Control", "public, max-age=3600, must-revalidate");

         OutputStream os = response.getOutputStream();

         byte[] buf = new byte[4096];

         int bytesRead = is.read(buf);