Squashed commit of the following:
commit 653544b98dc4d1b9a74e1509d0e6104b71bcdcb3
Author: Simon Zolin <s.zolin@adguard.com>
Date: Wed Dec 11 17:34:41 2019 +0300
* DNS reconfigure: protect against delayed socket fd close
commit 9e650f37dee7f771bf1d9d714c35f0a81788aa16
Author: Simon Zolin <s.zolin@adguard.com>
Date: Wed Dec 11 15:28:33 2019 +0300
- fix race on startup
commit 878fdb8fc4ebbc6fab683a65f5e4298e64c2073e
Author: Simon Zolin <s.zolin@adguard.com>
Date: Wed Dec 11 15:11:21 2019 +0300
* travis: don't run tests
commit 1c4ab60684ee22d55e6d2a3350c0f24d9844255c
Author: Simon Zolin <s.zolin@adguard.com>
Date: Wed Dec 11 14:56:28 2019 +0300
* travis: 'release.sh' and then run tests
commit e1f644b8d9a1f3b46990cdfb1b75fd81b3a49d33
Author: Simon Zolin <s.zolin@adguard.com>
Date: Wed Dec 11 14:52:59 2019 +0300
* set BlockingMode: "null_ip" by default