update russian translation
Merge pull request #289 from suhr/master

update russian translation
Update translations, add Polish
Enable Polish translation
Fix greentext

Thanks to dewbasaur for reporting the bug
Change video preview button text
Change settings dialog title
Typo
Add Manol translation

Ayy ! You have mothafucking friend request you little bitch !
Update Mannol translation
Add Polish translation
Merge pull request #292 from zetok/translation

Add Polish translation
Update translations
Update README.md
Embed new translations