Lower log level for markSupported not being supported, close AsyncHttpClient#275

Author: Stephane Landelle

api/src/main/java/com/ning/http/client/generators/InputStreamBodyGenerator.java

@@ -43,7 +43,7 @@ public InputStreamBodyGenerator(InputStream inputStream) {
         if (inputStream.markSupported()) {
             inputStream.mark(0);
         } else {
-            logger.warn("inputStream.markSupported() not supported. Some features will not works");
+            logger.info("inputStream.markSupported() not supported. Some features will not works");
         }
     }