Updating copyrights

New format: 'Copyright .year-present Open Networking Laboratory'

Change-Id: I1a9e58b355b775e75245ad875a2d7a4df3f03098
diff --git a/tools/package/deb/copyright b/tools/package/deb/copyright
index 09ec05e..583fe55 100644
--- a/tools/package/deb/copyright
+++ b/tools/package/deb/copyright
@@ -2,7 +2,7 @@
 Source: http://github.com/opennetworkinglab/onos
 
 Files: *
-Copyright: 2014-2015 Open Networking Laboratory
+Copyright2015-present Open Networking Laboratory
 License: Apache 2.0
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.