0.8.0 Release Candidate 1

WARNING: THIS IS A RELEASE CANDIDATE AND IS NOT INTENDED FOR DOWNSTREAM USE.

This source is a candidate for release version 0.8.0. Please see #678 issue for testing instructions and where to leave your feedback.

Compared to the previous release (0.7.0), this candidate contains:

• Accumulo improvements:#626, #627, #628
• Cassandra improvements: #669, #673
• Core improvements: #641, #656, #657
• Couchbase improvements: #631
• Dynamodb improvements: #647
• Elasticsearch improvements: #644
• Geode improvements: #648
• HBase10 improvements: #621, #651
• Infinispan improvements: #650
• Orientdb improvements: #629
• S3 improvements: #652
• Tarantool improvements: #649

Breaking changes:

• None.