Initial systemd support
Set default domain in default file at compile time
Rename postsrsd.default
Fix Policy CMP0026 warning on cmake 3.0.2
Set secret file in default file at compile time
Set chroot directory in default file at compile time
Prefix RUN_AS and CHROOT
Fix previous Policy CMP0026 fix
Fix file path of default file in postinstall
Read Config from environment after parsing commandline arguments
Remove default configuration from init scripts
* default configuration is stored in default file
* since postsrsd now reads the most important configuration parameters from env anyways, let's skip some commandline arguments
Small fix for systemd service file