Log Message:
sysutils/consul: Update to 1.0.5.

SECURITY:

- dns: Updated DNS vendor library to pick up bug fix in the DNS server
  where an open idle connection blocks the accept loop.

FEATURES:

- agent: Added support for gRPC health checks that probe the standard
  gRPC health endpoint.

IMPROVEMENTS:

- agent: (Consul Enterprise) The `disable_update_check` option to
  disable Checkpoint now defaults to `true`
- build: Bumped Go version to 1.9.3.

BUG FIXES:

- agent: (Consul Enterprise) Fixed an issue where the snapshot agent's
  HTTP client config was being ignored in favor of the HTTP
  command-line flags.
- agent: Fixed an issue where health checks added to services with
  tags would cause extra periodic writes to the Consul servers, even
  if nothing had changed.
- agent: Fixed several areas where reading from catalog, health, or
  agent HTTP endpoints could make unintended mofidications to Consul's
  state in a way that would cause unnecessary anti-entropy syncs back
  to the Consul servers.
- agent: Fixed an issue where Serf events for failed Consul servers
  weren't being proactively processed by the RPC router.