v1.7.0

Enhancements

• References librdkafka.redist 1.7.0. Refer to the librdkafka release notes for a complete
  list of changes, enhancements, fixes and upgrade considerations.
• Added OAuth support to AdminClient (jerive)

Fixes

• Resolved a schema caching bug (#1587) in CachedSchemaRegistryClient.GetSchemaIdAsync (jeremy001181).
• Fixed a configuration error in the Web example (cjgalione).

Security

• Updated System.Net.Http dependency to v4.3.4 (CVE-2018-8292)