* Fix upstream version parsing in d/rules to account for -rcX.
* Switch generated dependencies to Python 3 due to switch to Python 3
Sphinx.
+ * Build-Depend on debhelper (>= 9.20160709) | dh-systemd to keep
+ compatibility with Ubuntu 16.04, which does not yet have that
+ of debhelper.
[ Christian Ehrhardt ]
* d/rules: use new dh option names