What's Changed

• Remove dependency on futures-channel in favour of tokio primitives by @aumetra in https://github.com/djc/bb8/pull/191
• Fix #167: Notify waiters when dropping a bad connection from the pool by @xortive in https://github.com/djc/bb8/pull/194
• Provide statistics for get operations by @pfreixes in https://github.com/djc/bb8/pull/198
• Add new get wait time statistic by @pfreixes in https://github.com/djc/bb8/pull/203
• Adds new statistics attributes for tracking connections closed by @pfreixes in https://github.com/djc/bb8/pull/205
• Adds new statistics attributes for reaped connections by @pfreixes in https://github.com/djc/bb8/pull/206
• Adds new connections_created statistic by @pfreixes in https://github.com/djc/bb8/pull/207