Revert "atom feed utf-8"

This reverts commit 2cace6a89ea403cc300674a5192951c3030f2f11.
Revert "Revert "atom feed utf-8""

This reverts commit b8a4e35c6336bdbf4f7d5f2d6c0164db30e3823f.
Revert "atom feed datum rausgefiedert"

This reverts commit 887d6a1bb7290bdb9f9c257b5214ed6e57f7500a.