Update Debian packaging configuration

debian/control

@@ -4,14 +4,17 @@ Priority: optional
 Maintainer: LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
 Build-Depends:
  debhelper (>= 9),
- python (>= 2.6.5),
+ python (>= 2.7),
  dh-python,
+ python-setuptools,
 Standards-Version: 3.9.8
+X-Python-Version: >= 2.7
 
 Package: cubicweb-squareui
 Architecture: all
 Depends:
- cubicweb-web (>= 3.19.0),
+ python-cubicweb (>= 3.24)
+ python-six (>= 1.4),
  cubicweb-bootstrap (>= 1.0.0),
  ${misc:Depends},
  ${python:Depends},

debian/rules

 #!/usr/bin/make -f
 
-export PYBUILD_DISABLE=test
-export NO_SETUPTOOLS=1
-
 %:
-	dh $@ --with python2 --buildsystem=pybuild
+	dh $@ --with python2