redis-copy's connection too "fragile" to timeouts

[bitthegeek]

I have noticed some problems when copying data to new instances regarding connection timeouts. It seems that the default timeout set for redis-copy is too short. I increased it by modifying timeouts on REDIS_OPTIONS and the Redis.new() calls.

I suggest putting a timeout option to redis-copy for various use cases when the source and destination cannot provide very fast response (probably due to memory swapping like in our case, or some other reason).

[yaauie]

A pull-request would be welcome :smiling:

[bitthegeek]

I'll send one once I got my free time back 😜