Also improve overall quality.
(cherry picked from commit 7232c1e3409b65790d98d44467e4ef3739940478)

It prevents data loss while upgrading partition.

Because new s.r.templare requires new Jinja2.

Add a way to takeover remotely.

Why having wrappers of wrappers of wrappers, when we can have simple, readable code?

Used to access directly to VM.

This format must always be used in parameters to request instances.

See also http://www.freedesktop.org/software/systemd/man/systemd.timer.html
for online manpage.

Was tunnelling to the wrong port.