Redis-collections

What's Changed
* LRUDict: copy the local cache only when using sync by bbayles in https://github.com/redis-collections/redis-collections/pull/152
* Update supported versions: redis-server, redis-py, python3 by bbayles in https://github.com/redis-collections/redis-collections/pull/154


**Full Changelog**: https://github.com/redis-collections/redis-collections/compare/v0.11.0...v0.12.0

See the [release notes](https://github.com/redis-collections/redis-collections/blob/9f6f4c68e7a8a8b3835aecd64c26aea5c7432d26/docs/changelog.rst).

Version 0.10.0 was skipped for undisclosed reasons.

See PR 143 for details.

See the [changelog](https://raw.githubusercontent.com/redis-collections/redis-collections/ef6d235fd84a300ae7ff34d7fbc42e63aba132cd/docs/changelog.rst) for details.

See [the changelog](https://github.com/honzajavorek/redis-collections/blob/32bc830a43c85e4f2314c7460b1af1dc61bf88b9/docs/changelog.rst#releases) for details.

See [the changelog](https://github.com/honzajavorek/redis-collections/blob/9e1d600c8943ec7ca7b151c64f3451d303b96573/docs/changelog.rst#releases) for details.