-Updated to work with latest revision of Redis cluster: 2.9.11
(git:091ed386)
-Made callbacks for Redis commands facultative, as per node-redis
design.
-Exposed underlying Redis links to allow event callbacks. (Such as
pub/sub) Not implemented for poor man's cluster.
-Minor syntax bug.
Merge pull request #2 from mathieumg/master

Everything looks good, since I didn't write tests I can't make sure everything is ok, but we'll find out later for sure ;) Thanks!