Fix Fedora support by configuring systemd, not /etc/sysconfig
Merge pull request #453 from kbarber/maint/master/latest-fedora-no-sysconfig

Fix Fedora support by configuring systemd, not /etc/sysconfig
Merge 3.4.x changes into master.
Merge pull request #454 from apenney/merge-from-34

Merge 3.4.x changes into master.
doc: use postgresql::*server*::tablespace in example
Merge pull request #457 from igalic/doc-fix

doc: use postgresql::*server*::tablespace in example