* Also tweaked the `StartupSettings` so that it now reads in an `id` for the node, rather than just resulting in a blank `id`;
* Moved some logging from stdout to log4j
* Full `maven test` passing
Arguably this would result in a version change, as the settings file format has changed and now requires an id field. However we could make it optional, but it seems odd to have nodes with no ids.
Instead of using addresses in the format of `"127.0.0." + i` it now instead uses a first address of 127.0.0.1 with variable ports in the form of `50000 + i`. This way straight out of the repo you can run the tests, and to some degree achieves the same level of functional testing.
Also added a small additional bit of debug logging in `GossipService` as well as some `INFO` logging in the test - as I figure it's a test that should be suitable.
