Corrijo el issue #147.

 On branch develop
 Changes to be committed:

	modified:   src/Infraestructura/clusterConnector/clusterConnector.py
	modified:   src/Infraestructura/clusterEndpoint/databases/minimalClusterEndpointDBConnector.py
	new file:   src/Infraestructura/clusterEndpoint/threads/clusterServerTester.py
	modified:   src/Infraestructura/imageRepository/reactor/imageRepositoryReactor.py