v2.6.2

Added

• Add shovel and federation management commands to lavinmqctl #1277

Changed

• BoolChannel: Don't spawn fiber #1603
• Reduce etcd lease keepalive renewal interval to 1/3rd of TTL #1573

Fixed

• delay exchange message ordering #1600
• Removing too many bindings in Consistent hash exchange on unbind #1594
• Federation refactor/improvements #1492
• Bugfix and refactor dead lettering #1552
• BCC remove on delivery #1557
• Topic exchange # wildcard now matches zero segments #1608