Disable the REST interface which by default runs on port 8080 so as to
avoid conflicts with users that are using port 8080 for other things.
We don't use the REST interface so we don't need to expose it.
Fix#674
This enables easy access to all lnd settings for development, and is a step
toward relying on an external configuration file that will be accessible to
users for whom the code is not.
Jack Mallers
Tom Kirkpatrick
Ben Woosley