Update gradle to version 6.1.1

Use markdown version of the LGPL
Delete obsolete pom.xml

Change-Id: I7f141e2c3f50b9d97af99724f5ffc994a83d569e
diff --git a/README.md b/README.md
index e282cef..7bcf8fd 100644
--- a/README.md
+++ b/README.md
@@ -37,8 +37,8 @@
 
 ## License
 
-Copyright 2015, Intel Corporation.
+Copyright © 2015, Intel Corporation.
 
-This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU Lesser General Public License, version 3, as published by the Free Software Foundation.
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License, version 3, as published by the Free Software Foundation.
 
-This program is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the [GNU Lesser General Public License](https://github.com/01org/jndn-mock/blob/master/LICENSE) for more details.
+This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the [GNU Lesser General Public License](LICENSE.md) for more details.