Update debian/changelog

Signed-off-by: Antti-Juhani Kaijanaho <antti-juhani@kaijanaho.fi>
debian/control: Add "Multi-Arch: foreign"

Signed-off-by: Antti-Juhani Kaijanaho <antti-juhani@kaijanaho.fi>
po/fi.po: Minor fixes

Signed-off-by: Antti-Juhani Kaijanaho <antti-juhani@kaijanaho.fi>
Release 2.23.

Signed-off-by: Antti-Juhani Kaijanaho <antti-juhani@kaijanaho.fi>
Open 2.24.

Signed-off-by: Antti-Juhani Kaijanaho <antti-juhani@kaijanaho.fi>
Relax build deps on illumos