fixed lintian errors and some warnings

Author: Christoph Lutz

debian/control

@@ -13,7 +13,7 @@ Build-Depends:
  python3-urllib3,
  python3-apt
 Standards-Version: 3.9.8
-XS-Python-Version: current
+X-Python3-Version: >= 3.3
 Maintainer: Christph Lutz <[email protected]>
 
 Package: apt-repos

debian/copyright

@@ -0,0 +1,20 @@
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+
+Files: *
+Copyright: 2017-2018, Christoph Lutz <[email protected]>
+           2017-2018, Christoph Lutz <[email protected]>
+License: LGPL-2.1
+ This package is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; version 2.1 of the License.
+ .
+ This package 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 for more details.
+ .
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>
+ .
+ On Debian systems, the complete text of the GNU Lesser General
+ Public License version 2.1 can be found in "/usr/share/common-licenses/GPL-2.1".