debian: fix VCS links, tweak descriptions and copyright

Change-Id: I4a444cf40839c20a0d3d5237f9d4d01d71e01d60
diff --git a/debian/copyright b/debian/copyright
index f1dada2..83e29df 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -6,7 +6,7 @@
 Copyright: 2009-2014 On-Waves
            2009-2015 Holger Hans Peter Freyther <zecke@selfish.org>
            2013 Jacob Erlbeck <jerlbeck@sysmocom.de>
-           2016 sysmocom s.m.f.c. GmbH <info@sysmocom.de>
+           2016-2017 sysmocom s.m.f.c. GmbH <info@sysmocom.de>
 License:   AGPL-3.0+
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU Affero General Public License as published by