v0.12.0

• Added async with support to BaseCache.
• Added initial typing support.
• Migrated to redis library (aioredis is no longer supported).
• SimpleMemoryBackend now has a cache per instance, rather than a global cache.
• Improved support for build_key(key, namespace) #569 -- Padraic Shafer
• Removed deprecated loop parameters.
• Removed deprecated cache parameter from create().
• Added support for keyword arguments in TimingPlugin methods.
• Fixed inconsistent enum keys between different Python versions. -- Padraic Shafer
• Fixed .clear() breaking when no keys are present.
• Fixed from aiocache import *.
• Fixed .delete() when values are falsy.