Fix default listening behavior of dnsmasq

[DL6ER]

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Pulling against master

Default behavior is old behavior (listen on gravity interface (e.g. eth0), permit all origins)

Raspbian ships dnsmasq v2.72 which is problematic. Tested with v2.76 and didn't see any problems.

This template was created based on the work of udemy-dl.

[PromoFaux]

Approved

[PromoFaux]

Approved

[jacobsalmela]

Approved