Cherry-pick "Merge branch 'Ubuntu1804Fixes-1.0-20190121' into '1.0'" into master
Ubuntu 18.04 Fix(es), 1.0 branch (2019.01.21.)
See merge request !424 (merged)
(cherry picked from commit 0b3fed96)
- ce9e817c Updated Davix to depend on Python, if we build Python ourselves.