Update Debian packaging configuration

debian/control

@@ -3,12 +3,12 @@ Section: web
 Priority: optional
 Maintainer: Logilab Packaging Team <contact@logilab.fr>
 Build-Depends:
- debhelper (>= 7),
+ debhelper (>= 9),
+ python (>= 2.7), 
  dh-python,
- python (>= 2.6.5),
  python-setuptools,
-Standards-Version: 3.9.3
-X-Python-Version: >= 2.6
+Standards-Version: 3.9.8
+X-Python-Version: >= 2.7
 Homepage: http://www.cubicweb.org/project/cubicweb-addressbook
 
 Package: cubicweb-addressbook