Build ip6range to content declaration

Add ip6range to content declaration

Build update README for contributions

Backwards compatible systemctl try-reload

Fixes DBezemer#31

Don't tag leftover messages

Fix default included syslog entries

- Resolved issue with all messages in /var/log/messages missing on CentOS/RHEL 7.x and 8.x

Fix default included syslog entries

- Resolved issue with all messages in /var/log/messages missing on CentOS/RHEL 7.x and 8.x

Fix default included syslog entries

- Resolved issue with all messages in /var/log/messages missing on CentOS/RHEL 7.x and 8.x

Backport from master

Automatically populate main version

El6 does not support %license

Add GPLv3 license