Commit #d9393b1 did not completely fixed the systemd-related issues.
The handler "reload systemd" has a "when" clause which fails in
systemd-based systems.
This commit attempts to fix the problem described above. The "when"
clause in the handler "reload systemd" has been fixed. Some facts has
been added in the install playbook, in order to make the code more
simple and easier to maintain.
Paulo Pizarro
David Castellanos
Sergei Antipov
deimosfr
Guillaume Dedrie
Kirill Klenov