Makefile fixes for systemctl systems
Merge pull request #842 from jmaas/master

PEP8 - cobbler/module_loader.py
Merge pull request #845 from jmaas/master

PEP8 - cobbler/action_log.py
Merge pull request #846 from jmaas/master

PEP8 - cobbler/action_power.py
PEP8 - cobbler/utils.py