Can't delete flags due to redis-namespace bug

[jdelStrother]

I use Redis::Namespace to keep my flipper flags separate from the rest of my redis database, but this is currently introducing a bug where I can't remove any feature flags - it tries to remove the flagname key from redis rather than flipper:flagname.

This is due to a bug in redis-namespace - resque/redis-namespace#223 - rather than being anything that Flipper is doing wrong, but thought it was worth highlighting here for anyone else running into the same problem.

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As an aside, Flipper is the only reason we use redis-namespace. Would you be supportive of a PR that adds a key_prefix option into flipper-redis, so we can drop redis-namespace?

[jnunemaker]

I'd be open to this.

[jnunemaker]

redis namespace is no longer needed thanks to #722.