synchronize to current redis-py

[mikeorr]

The package is pinned to redis<=2.9.1 (i.e., redis-py), and the changelog says this is due to an API incompatibility in the 2.10 series (redis/redis-py#510). That bug is now closed, so can the pin be removed?

[snario]

+1

I'm just starting to use this now and would love to be up-to-date. Already seem to be hitting this issue: redis/redis#681 (I think this is the cause?)

[ericrasmussen]

I have been very behind on project maintenance -- sorry for that! I updated the version pin and released to PyPI so this should be addressed now. Thanks!