Close#1914
Squashed commit of the following:
commit cb127a9a409b2f228848fb838535f3db6e9d32a9
Author: Simon Zolin <s.zolin@adguard.com>
Date: Fri Oct 2 12:37:11 2020 +0300
return empty response if not A/AAAA qtype
commit 175a736d7d69619022db92a9250c382ad7fc9996
Author: Simon Zolin <s.zolin@adguard.com>
Date: Fri Oct 2 12:21:51 2020 +0300
fix
commit 03aab89d2da00ede3aad6eb5a5bb2d545444a186
Author: Simon Zolin <s.zolin@adguard.com>
Date: Fri Oct 2 12:18:11 2020 +0300
fix tests
commit 4225d511df910aae2df4651231c01a8a13bb937f
Author: Simon Zolin <s.zolin@adguard.com>
Date: Fri Oct 2 12:02:11 2020 +0300
* DNS: set default blocking mode to Null IP for A/AAAA, NXDOMAIN for others
