Add config option for server's port

[msurguy]

It seems that there is no way to set a port on which the server is receiving connections. The module could work on any arbitrary port, so it would be useful to make that as an option for this package as well.

[cmosguy]

@msurguy do you think this is still necessary?

[andrisi]

Also the URI. It's not always /pub?id=[channel]