Corrected some German phrases

Minor changes, mostly concerning formatting

(cherry picked from commit bd8448029323c61a2fff4e073e37adec974e27ed)
Corrected two phrases in German setting.in.php

Somehow I got this mixed up...

(cherry picked from commit a6b41c6c619435d7a329c3ed55772cf03b0c9c36)
German lexicon topic updates

Merge branch 'lexicon-de' into develop

* lexicon-de:
  Corrected two phrases in German setting.in.php
  Corrected some German phrases