Update nl_NL.ini
Update nl_NL.ini
Update ru_RU.ini
Update pl_PL.ini
Merge pull request #121 from adrian17/master

Update pl_PL.ini
Update pl_PL.ini - mostly a cleanup
Merge pull request #122 from adrian17/master

Update pl_PL.ini - mostly a cleanup
Little fix in [Screen]
[KeyMapping] updated
[System] updated