Merge branch 'ecchronos-1.2' into ecchronos-2.0 #720

Job	Run time
tests (Unit tests, test jacoco:report, 3.6)	2m 39s
tests (Style check, compile com.mycila:license-maven-plugin:check pmd:pmd pmd:cpd pmd:check pmd:c...	1m 48s
tests (OSGi integration, install -P docker-integration-test,osgi-integration-tests -Dit.cassandra...	6m 14s
tests (Standalone integration 3.0, verify -P docker-integration-test,standalone-integration-tests...	7m 35s
tests (Standalone integration 3.11, verify -P docker-integration-test,standalone-integration-test...	7m 44s
tests (Standalone integration 4.0, verify -P docker-integration-test,standalone-integration-tests...	8m 17s
tests (Python 2.7 integration, verify -P docker-integration-test,python-integration-tests -DskipU...	6m 16s
tests (Python 3.6 integration, verify -P docker-integration-test,python-integration-tests -DskipU...	5m 52s
	46m 25s

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