Names of connectors in the python client

I was trying to create a connector in the python client. If I follow the naming schema I should use the directory rucio with a rucio_connector.py. This breaks because I am running this in an environment that already has a package called rucio installed. This made me realise that the whole naming scheme is not ideal. I would propose moving all the connectors to something likeshopping_client.connector.rucio in stead of rucio.rucio_connector.