Test Url address is broken

[tamirba]

According to issue #20, when not specifying the server ip address at difido_config.properties, test's URL field is being published to elasticsearch with address 0.0.0.0 instead server's ip address.

[itaiag]

The address (0.0.0.0) was changed to allow to connect to server remotely without specifying the address server address in the configuration file. Issue #20.
We are considering rolling it back, but in any way, in a production environment, I think this is a mistake to run the server without configuring the address in the server.