Rb

-----------

(released on Feb 8th 2015)

- Fixed cluster for host defaults support.
- Changed poller to handle close explicitly. This should prevent
bad loops in when the socket closes while writing.
- Added support for execute_commands.

-------------

(released on Oct 13th 2015)

- Fixed an illogical constructor for the local client.
- Fixed a problem with clearing out pending batches.
- Hosts are now validated to not have holes in the two shipped routers
which both depend on a gapless setup.
- Connection errors now try to print out the original IO error's infos.

-----------

(released on Oct 7th 2015)

- Quickly fixed `target_key`'s behavior to make sense so that the
result on the promise is the value instead of a dictionary of a
single host.

-----------

(released on Oct 7th 2015)

- Added `target_key` to the fanout client to simplify targeting of hosts.

-------------

(released on Sep 28th 2015)

- Fixed command buffers for disabled max concurrency.
- Fixed map manager timeouts.

-------------

(released on Sep 15th 2015)

- Made rb work with older versions of pyredis.