Pontoon: Updated German (de) localization of Pontoon Intro
Pontoon: Updated German (de) localization of Pontoon Intro

Translation authors:
- Michael Wolf <milupo@sorbzilla.de>

Osmose/pontoon-intro,mathjazz/pontoon-intro,Osmose/pontoon-intro,jotes/pontoon-intro,mathjazz/pontoon-intro,jotes/pontoon-intro,mathjazz/pontoon-intro,Osmose/pontoon-intro,jotes/pontoon-intro