Update Russian translation

Change-Id: Ib3602d8a6d8becb72cd9eba431353856549a5726
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>
Reviewed-by: Niels Weber <niels.weber@digia.com>