I've created a a Docker Container file which should start 3 containers:
- mysql
- rabbitMQ
- worker

I've reconfigured Travis in order to start this docker container before
the build.

I've added some simple integration test for the broker:
datavault-broker/src/test/java/org/datavaultplatform/broker/services/VaultsServiceIT.java

The test is creating one Vault and checking it has been added to the
database using the VaultService.

Made a few cahnges to the Dockerfile, supervisor config and
docker-compose file.

RabbitMQ contaienr seems to not be ready when the test are running.

In order to make sure that the workers start with RabbitMQ ready, I've
added a script checking that service is running.
ssue #396 (RSS022-74) - Wait for containerus#	new file:   docker/wait-for-rabbitmq.sh