Use just specialized local-service option, which would deactivate as
soon as any interface= or listen-address= options are used.
Update default configuration to use it.
Dnsmasq now accepts in default configuration queries only from
localhost. It received queries from any interface on the computer
before. It just dropped queries coming from wrong interfaces.
This change makes it listen only on specified interfaces. Queries coming
from different interfaces would receive ICMP error right away. Makes it
easier to understand why dnsmasq is not answering to those queries.
