Update ru-RU strings in locale file

Also includes minor syntax change for php-transvision-extra strings
 - these do not need "innerHTML", as there is no HTML specific content

Signed-off-by: Aleksandrs Ļedovskis <aleksandrs@ledovskis.lv>
Merge pull request #115 from aledovsky/chore/update_ru-RU_translation

Update locale for ru-RU & minor syntax fix