Apache BookKeeper 4.10 releases: low latency storage service

Apache BookKeeper is a scalable, fault tolerant and low latency storage service optimized for append-only workloads.

It is suitable for being used in following scenarios:

• WAL (Write-Ahead-Logging), e.g. HDFS NameNode.
• Message Store, e.g. Apache Pulsar.
• Offset/Cursor Store, e.g. Apache Pulsar.
• Object/Blob Store, e.g. storing state machine snapshots.

Changelog v4.10

• [maven-release-plugin] prepare for next development iteration
• Add -Dtwitter to release scripts in order to build Twitter stats providers
• Removed mutex contention on BufferedChannel
• Add -Dtwitter to fix auto-build
• [DOCS] Update coding_guide.md
• Fix version in modules that are not active by default

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