[debian] Use pybuild

Bump min python2 version along the way.

debian/changelog

 cubicweb-postgis (0.7.0-2) UNRELEASED; urgency=medium
 
   * Switch to 3.0 (quilt) format
+  * Use pybuild
 
  -- Philippe Pepiot <philippe.pepiot@logilab.fr>  Thu, 27 Jun 2019 16:17:16 +0200
 

debian/control

@@ -5,11 +5,11 @@ Maintainer: LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
 Build-Depends:
  debhelper (>= 9),
  dh-python,
- python (>= 2.6.5),
+ python-all (>= 2.7),
  python-setuptools,
 Standards-Version: 3.9.6
 Homepage: https://www.cubicweb.org/project/cubicweb-postgis
-X-Python-Version: >= 2.6
+X-Python-Version: >= 2.7
 
 Package: cubicweb-postgis
 Architecture: all

debian/rules

 #!/usr/bin/make -f
 
+export PYBUILD_NAME=cubicweb-postgis
+
 %:
-	dh $@ --with python2
+	dh $@ --with python2 --buildsystem=pybuild