Fixed some typos and translated a couple of German words

Change-Id: I24ae28dd537ba283a9480413659f85bd6711acad
Reviewed-on: https://gerrit.libreoffice.org/48892Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Julien Nabet <serval2412@yahoo.fr>