* New upstream release
* debian/clean
  - Removed .coverage entry
* debian/control
  - Added python3-coverage, python3-mock, python3-nose to Build-Depends
  - Bumped python(3)-coverage to (>=3.6)
  - Removed python-tornado from Build-Depends since it was used only for
    dummyserver
* debian/copyright
  - Updated copyright years
* debian/patches/01_do-not-use-embedded-python-six.patch
  - Refreshed
* debian/patches/02_require-cert-verification.patch
  - Refreshed
* debian/patches/03_no-setuptools.patch
  - Superseded by debian/patches/setuptools.patch
* debian/patches/03_force-setuptools.patch
  - Renamed from setuptools.patch
  - Added description
* debian/patches/05_do-not-use-embedded-ssl-match-hostname.patch
  - Do not use embedded copy of ssl.match_hostname
* debian/patches/06_relax-test-requirements.patch
  - Relax version of packages needed for testing
* debian/rules
  - Enabled tests at build time also for Python 3 using the custom build
    plugin of pybuild
  - Cleaned .coverage file generated by nose using coverage plugin
  - No need to remove dummyserver since it is not installed anymore