You can test it here:
btw: there should be a twitter button right below the "Lunar" text (logo) but I cant see it in Chrome - but no plugins are blocking Twitter. It was disabled by Avira Antivir Plugin in the past but I added an exception and enabled tracking. The Twitter button is visible in the local preview in Chrome but not online. Can everyone else see it?
In Internet Explorer I only see a black screen with the 2 Facebook buttons. o.O
/Update: After looking around on facebook for a while I found that you can add rights when you submit it for review. Does it need the "publish_actions" (Provides access to publish feed posts, Open Graph stories, achievements, scores and other activity detailed in Publishing Permissions) to work?