* nlnet/master: (30 commits)
  - Merge PR NLnetLabs#214 from gearnode: unbound-control-setup recreate   certificates.  With the -r option the certificates are created   again, without it, only the files that do not exist are created.
  fix unbound-control-setup is not idempotent
  - Keep track of number of timeouts. Use this counter to determine if capsforid   fallback should be started.
  - More documentation for redis-expire-records option.
  - Changes for PR NLnetLabs#206 (formatting and remade lex and yacc output).
  changed init logic of redis backend as per review request
  implemented review feedback renamed option from 'redis-set-ttl' to 'redis-expire-records'
  added option 'redis-set-ttl' to define whether ttl should be added to redis records added check for redis command 'setex' when initializing redis connection updated documentation minor improvements to previous changes
  - Merge PR NLnetLabs#208: Fix uncached CLIENT_RESPONSE'es on stateful   transports.
  Send tcp_req_info->spool_buffer as dnstap CLIENT_RESPONSE
  Fix uncached CLIENT_RESPONSE'es on stateful transports
  nroff fix for dash.
  - Merge PR NLnetLabs#207: Clarify if-automatic listens on 0.0.0.0 and ::
  Clarify if-automatic listens on 0.0.0.0 and ::
  honor 'server_expired_ttl' in redis
  added logic for redis to honor ttl when serve_expired is not enabled
  Changelog note for PR NLnetLabs#203. - Merge PR NLnetLabs#203 from noloader: Update README-Travis.md with current   procedures.
  Make unbound-control error returned on missing domain name more user friendly.
  Update README-Travis.md with current procedures
  - Fix RPZ concurrency issue when using auth_zone_reload.
  ...