Release 1.8.5 of the Amazon Kinesis Client for Java

Release 1.8.5 (September 26, 2017)

• Only advance the shard iterator for the accepted response.
  This fixes a race condition in the KinesisDataFetcher when it's being used to make asynchronous requests. The shard iterator is now only advanced when the retriever calls DataFetcherResult#accept().
  • PR #230
  • Issue #231