update copyrights for 2016

Change-Id: I5d52e7aaabcd71865a976a7d6f0ae45461d20c75
diff --git a/ring-android/app/src/main/res/values/strings.xml b/ring-android/app/src/main/res/values/strings.xml
index bc5487d..de0181d 100644
--- a/ring-android/app/src/main/res/values/strings.xml
+++ b/ring-android/app/src/main/res/values/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?><!--
-Copyright (C) 2004-2015 Savoir-faire Linux Inc.
+Copyright (C) 2004-2016 Savoir-faire Linux Inc.
                                                                     
 Author: Alexandre Lision <alexandre.lision@savoirfairelinux.com>                     
 Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>