Talk about nohup in the documentation.

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>
Support quality score in client.

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>
Support for elevation in server.

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>
Support for line quality in server.

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>
Posttroll-free subscriber in server.

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>