Alternative limiter

[ncr]

I think the limiter uses expire incorrectly on the Redis hashes. In my observation, the limiter works for some time but when it wraps around the bucket_span, it blocks until the expire takes place on the whole limiter hash.

Here's a similar implementation that operates on invidual keys: https://gist.github.com/ncr/c2b1b62a8d2b636daca1dff12b457a31

[kpheasey]

I like your simple implementation. It's clean, transparent, and can be easily modified. Since this project seems dead, I think I'll implement the feature by just including your class.

[ncr]

Thanks :) Feel free to use my implementation!

[phillipp]

@ncr @kpheasey Is this fixed with #46 ?