[OPENENGSB-3539] added additional serializer to the JsonUtils class so that models can be deserilized
[OPENENGSB-3539] added additional integration test to check model tail support in the running environment
[OPENENGSB-3534, OPENENGSB-3480] Merged test project and fixed various checkstyle errors
Merge pull request #821 from Arcticwolf/OPENENGSB-3539

[OPENENGSB-3539] added additional serializer to the JsonUtils class
Merge remote-tracking branch 'upstream/master' into OPENENGSB-3426
[OPENENGSB-3426] added method AbstractPreConfiguredExamTestHelper.getExampleDomainVersion(); replaced static values for source model versions and names in FileWatcherConnectorIT.testModelTransformationFromAtoB(); temporarily disabled code in FileWatcherConnector.onEvent() since it was causing errors