Hi @pajuka :)
Our Facebook buttons work like our previous SexyBookmarks and ClassicBookmarks Facebook buttons. We've removed the Additional Button set that included the Facebook Like, but have kept the Facebook Send function. We've been discussing the Facebook Like feature and how best to integrate it back into the plugin. Watch for future updates.
As for translated German Texts, the Related Content headline is fully customizable; allowing you to enter your own personalized text to replace 'You may also like:' ...you can update the share buttons headline and replace it with your own image through a customization.
Here's a couple articles you may want to read: