Look into the descripton

- removed core\FILES\.placeholder
+ added core\FILES\langs\client.de.po (Translation)
+ added core\FILES\langs\server.de.po (Translation)
+ added POParser Class
- removed old Languaged Files
Revert "Look into the descripton"

This reverts commit ae2a1affbfd4e176eb576de17896ca17540cb4f2.
Revert "Revert "Look into the descripton""

This reverts commit 45ea6071db7e2489fd1db5eb8913bb95e204f0c3.