Version bump 1.2.17 (redis#85)

Version bump 1.2.16 (redis#75)

version bump 1.2.15 (redis#63)

version bump 1.2.12

add support for cluster mode (redis#42)

new 'cluster_client' add to support cluster mode.
the new client use CLUSTER_SLOTS command to retrive the
key-->node mapping, create separate connection fot each node,
and send the commands to the appropriate connection according
to hash calculation.

Merge pull request redis#22 from RedisLabs/segfault-random-data

Fix mem corruption when using random data

Fix binary protocol pipelining: always use the actual body length (re…

…dis#16)

even when not saving the value.

Bump version to 1.2.8.

version bump 1.2.7

version 1.2.6: random data fix, latency histogram improvements