Fix Close Window accelerator

Commit 032f37f49778c1b8214b88b764ac29c1654b12e0 removed the action from
the menu, but won't keep the accelerator unless explicitly specified in
the XML file; add it in the XML file so Ctrl+w works.
Change Finnish translation team web page to l10n.gnome.org
Updated Kazakh translation
general:port to gaction