Various minor cleanup/fixes in Debian patches.
Replace sjoerd's sysv-generator patch.
Do not order rcS.d services after local-fs.target if they do not explicitly depending on $local_fs.
Prevent rcS.d services from depending on remote-fs.target or network-online.target.
Order rcS.d init scripts before basic.target instead of sysinit.target.
Add /run/shm -> /dev/shm symlink in debian/tmpfiles.d/debian.conf
Add new systemd service users in systemd postinst.
Add missing system groups used in udev rules in udev postinst.
Add breaks on old resolvconf, as it does not play well with systemd-resolved.
Bump dependency on sysv-rc for updated update-rc.d.