[skeleton] Update Debian packaging template
Here are multiple updates to the Debian packaging template provided when
running `cubicweb-ctl newcube`:
* Switch to source format 3.0 (quilt).
* Switch to debhelper 9.
* Switch to dh-python.
* Switch to Python 3.
* Name the binary package `python3-cubicweb-CUBENAME` instead of
just `cubicweb-CUBENAME` (which is still the source package).
* Populate Depends using dh_python3 support for Python requirements.
* Run test suite at build time using pytest.
* Add autopkgtest to run test suite against the installed package.
* Bump Standards-Version to 4.3.0.
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb 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, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 CubicWeb. If not, see <http://www.gnu.org/licenses/>.