Reliability fixes

- Prevent hang on start related to DNSSEC

- Timeout unavailable severs more quickly, which works around transient
  failures (previously wouldn't query a "dead" server for 900s)

- Limit TTL on NXDOMAIN responses

- Fixes for galaxy and linting

Change-Id: I95bf71ec2841e4036a6a14501e9ed285d5249732
diff --git a/.reuse/dep5 b/.reuse/dep5
index 36ce305..40fef72 100644
--- a/.reuse/dep5
+++ b/.reuse/dep5
@@ -1,5 +1,5 @@
 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 
-Files: .cookiecutter_params.json VERSION .gitreview
+Files: .cookiecutter_params.json VERSION .gitreview README.md
 Copyright: 2020 Open Networking Foundation
 License: Apache-2.0