Add sysctl module to control kernel options
Allow individual machine manifests to have a private component as well
Simplify aur_package module
Make systemd_service module require the systemd package
Add udev_rule package which allows udev rules to be specified
Add interface_rename module which allows network interfaces to be renamed according to their MAC address
Add systemd_custom_service which allows custom systemd services to be added and enabled at startup time
Add sysprivacy module, which enables Linux's IPv6 privacy extensions and sets up MAC spoofing at startup time