* nlnet/master:
  - Updates for NLnetLabs#461 (Add max-query-restarts option).
  - Expose 'max-sent-count' as a configuration option; the   default value retains Unbound's behavior.
  - Expose 'statistics-inhibit-zero' as a configuration option; the   default value retains Unbound's behavior.
  - Fix to wrap Makefile scripts directory in quotes for uninstall.
  Changelog note for NLnetLabs#808 - Merge NLnetLabs#808: Wrap Makefile script's directory variables in quotes.
  wrap directory variables in quotes
  Fix date.
  - Fix NLnetLabs#773: When used with systemd-networkd, unbound does not start   until systemd-networkd-wait-online.service times out.
  - Clear documentation for interactivity between the subnet module and   the serve-expired and prefetch configuration options.
  - Add SVCB and HTTPS to the types removed by 'unbound-control flush'.
  - Fix NLnetLabs#782: Segmentation fault in stats.c:404.
  Changelog entry for NLnetLabs#720
  Document max-query-restarts option
  Use max-query-restarts in iterative resolver
  Add max-query-restarts to grammar and lexer
  Add max-query-restarts config parameter