Updated Finnish translation from pull #166.

Squashed commit of the following:

commit 86e704e7a66fe0979885ee677e2b7cf3451567ce
Author: Jani Kinnunen <jani.kinnunen@wippies.fi>
Date:   Thu Aug 9 06:49:07 2012 +0300

    Another try at correcting the WebDAV thing.

commit 5e02bad5216af6e285b8446efd9262a010f9bcbe
Author: Jani Kinnunen <jani.kinnunen@wippies.fi>
Date:   Wed Aug 8 20:51:21 2012 +0300

    Small corrections to the Finnish translation.

commit 47cb79e1e007f762bc7e870d619558baea43f1cf
Author: Jani Kinnunen <jani.kinnunen@wippies.fi>
Date:   Wed Aug 8 09:18:06 2012 +0300

    Updated Finnish translation