Add unit tests with embedded Kafka for the controller#2

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tonvanbart wants to merge 2 commits intojresoort:masterfrom tonvanbart:controller-unit-test

+438-88

Commits on Sep 21, 2018

Add unit tests with embedded Kafka for the controller
Ton van Bart
committed

Commits on Sep 28, 2018

Added aggregator parent pom; adjustments for unit test with embedded Kafka
Ton van Bart
committed