Support Enumerable for Redix

[eppdot]

It would be really nice to have support for Enumerable for Redix as one could use the redis command KEYS {PATTERN} for that. Furthermore it would be awesome, if one could provide a pattern to the keys/1 function. For example, when I share Redis with another application/instance I want to only list keys with a scoped suffix like key:its_this_app.

[christhekeele]

How would you imagine the pattern API working, out of curiosity? It would have to be an addition beyond the standard Map functions, I imagine.

I've had an idea in mind for a while to support namespacing (#16) but I feel as if you want to vary the prefix dynamically, per call, rather than at the store level?

[christhekeele]

This has been implemented for the next release.