add support for hashes

[costin]

Hashes are one of the big features added in Redis 2.0 but JRedis does not support them unfortunately (and neither does any of the JRedis forks that I've looked at)...

[alphazero]

I did my best to make it trivial to add commands. Its easy. The only 'hard' stuff right now is the messaging semantics which would require more than just adding methods and following a very basic pattern to hook it up. (You can look at the commits and pick one that adds a single command: it should show you exactly what is the process.)

Happen to have the hash doc url? I'll take a look.

[costin]

Sure: http://redis.io/commands#hash