Make Kafka config optional

Should be backported to v0.6.2

changed milestone to %0.7.0

added modul/theodolite label

assigned to @she

added 2 commits

• d1e83654 - 1 commit from branch master
• 782b64fa - Make Kafka config optional

Compare with previous version

enabled an automatic merge when the pipeline for 782b64fa succeeds

merged

mentioned in commit 96e7f168

mentioned in issue #322 (closed)