Fix build issue.

[joelharkes]

Here you go.

[joelharkes]

I'll think of a better way to fix this issue. of extending teh redis client. maybe make the methods on the redisClient vritual

fyi we used the ClientFactory method on the RedisManagerPool to extend the RedisClient with a prefix so every key is prefixed but the problem was we weren't able to prefix every thing especially this remove by pattern method.