ssdp-responder-1.7-bp154.1.19

- Added hardening to systemd service(s) (bsc#1181400). Added patch(es):
  * harden_ssdpd.service.patch

- Package systemd service file
- Update to version 1.7
  * Use /etc/os-release as base for SSDP server string,
    distribution release information is primarily stored in this
    file, some Linux systems still use /etc/lsb-release, on real
    UNIX systems we can use uname(1)
  * Update ssdpd(8) man page
- Update to version 1.6
  * Fix CVE-2019-14323
  * Refactor socket handling, enable SO_REUSEADDR + SO_REUSEPORT
  * Change default behavior, must now use -n to run in foreground
  * Add ssdp-scan tool, similar to mdns-scan
  * Add systemd unit file

- Fix write style of description.

- Initial package, version 1.5