Merge branch 'master' into 'lars-documentation'

.gitignore

CONTRIBUTING.md

Dockerfile

README.md

config/supervisor/aura-engine.conf

config/systemd/aura-engine.service

contrib/heartbeat-monitor/PyHeartBeat.py

docs/bare-metal-installation.md

docs/developer-guide.md

requirements.txt

run.py

run.sh

src/base/exceptions.py

src/base/utils.py

src/client/connector.py

src/control.py

src/engine.py

src/events.py

src/mixer.py

src/plugins/monitor.py