bb8 is an r2d2-like connection pooling solution for the async/await world. This is the first release from a new maintainer: since @khuey doesn't have much time, @djc has become the primary maintainer.

• Migrate to tokio 0.2, std::future::Future and async/await
• Upgrade to tokio-postgres 0.5 and redis 0.15
• Add a guard-based get() API (thanks to @elpiel)
• Retry connection establishment on failure (thanks to @bbigras for contributing a test case)

Any feedback is welcome, please file any issues you may have including comments on (lack of) documentation, example code that would help you work with this projects, and of course any bugs.