Import Finnish translation from KDE

This is the first part and covers 4 files.
This contains translations by me, Aki Koskinen and
the following others from whom I have permission to commit this to Qt.

Originally-by: Jiri Grönroos <jiri.gronroos@iki.fi>
Originally-by: Jorma Karvonen <karvonen.jorma@gmail.com>
Originally-by: Kim Enkovaara <kim.enkovara@iki.fi>
Originally-by: Mikko Ikola <ikola@iki.fi>
Originally-by: Niklas Laxström <niklas.laxstrom+kdetrans@gmail.com>
Originally-by: Santtu Pajukanta <santtu@pajukanta.fi>
Originally-by: Teemu Rytilahti <tpr@iki.fi>
Originally-by: Tommi Nieminen <translator@legisign.org>

Change-Id: Icb1f79f3afec03e945a44df7aa464b1867eaa3c5
Reviewed-by: Aki Koskinen <qt@akikoskinen.info>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Russian translation update

Change-Id: Ie3ae5760fee610fe45c1f7e75d251c4c739cc3d4
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>