[TASK] Cleanup

Change-Id: I7ec71b17417084a1f40cf5fec1ccc0d16311e079
Reviewed-on: https://review.typo3.org/28878
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer
[DOC] Documentation about EM configs

Change-Id: Ic7990922085f3d9c76f1d44c01b4e1ac26ef859f
Reviewed-on: https://review.typo3.org/28877
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer