Log Message:
Update sysutils/consul to 0.7.1.

BACKWARDS INCOMPATIBILITIES:

- Child process reaping support has been removed, along with the reap
  configuration option.
- The default for max_stale has been increased to a near-indefinite
  threshold (10 years) to allow DNS queries to continue to be served in
  the event of a long outage with no leader.
- The api package's PreparedQuery.Delete() method now takes WriteOptions
  instead of QueryOptions.

FEATURES:

- Key/Value Store Command Line Interface: New consul kv commands were
  added for easy access to all basic key/value store operations.
- Snapshot/Restore: A new /v1/snapshot HTTP endpoint and corresponding
  set of consul snapshot commands were added for easy point-in-time
  snapshots for disaster recovery.
- AWS auto-discovery: New -retry-join-ec2 configuration options added to
  allow bootstrapping by automatically discovering AWS instances with a
  given tag key/value at startup.

IMPROVEMENTS:

- api: All session options can now be set when using api.Lock().
- agent: Added the ability to bind Serf WAN and LAN to different
  interfaces than the general bind address.
- agent: Added a new tls_skip_verify configuration option for HTTP
  checks.
- agent: Consul is now built with Go 1.7.3.

BUG FIXES:

- agent: Fixed a Go race issue with log buffering at startup.
- agent: Fixed a panic during anti-entropy sync for services and checks.
- agent: Fixed an issue on Windows where "wsarecv" errors were logged
  when CLI commands accessed the RPC interface.
- agent: Syslog initialization will now retry on errors for up to 60
  seconds to avoid a race condition at system startup.
- agent: Fixed a panic when both -dev and -bootstrap-expect flags were
  provided.
- agent: Added a retry with backoff when a session fails to invalidate
  after expiring.
- agent: Fixed an issue where Consul would fail to start because of
  leftover malformed check/service state files.
- agent: Fixed agent crashes on macOS Sierra by upgrading Go.
- agent: Log a warning instead of success when attempting to deregister
  a nonexistent service.
- api: Trim leading slashes from keys/prefixes when querying KV
  endpoints to avoid a bug with redirects in Go 1.7 (golang/go#4800).
- dns: Fixed external services that pointed to consul addresses (CNAME
  records) not resolving to A-records.
- dns: Fixed an issue with SRV lookups where the service address was
  different from the node's.
- dns: Fixed an issue where truncated records from a recursor query were
  improperly reported as errors.
- server: Fixed the port numbers in the sample JSON inside peers.info.
- server: Squashes ACL datacenter name to lower case and checks for
  proper formatting at startup.
- ui: Fixed an XSS issue with the display of sessions and ACLs in the
  web UI.