There should be more atomic commits but the whole thing was a mess. This
commit changes the synchrounous Redis connection into an asynchronous
one in its own class RedisConnection.
The RedisConnection uses a Workqueue with commands to fire against the
Redis server. When a response is required a callback must be supplied,
refer to RedisWriter::RedisGet().
Known Issues:
- Authentication has no error handling and can break the connection
- Error handling in general is iffy due to the nature of the async redis
connection
- Getting a reply out of RedisConnection is not trivial
- HandleRW... sunt dracones
This works using an async Redis connection. Multiple connections are not
possible. The connection is fed from a workqueue filled with
RedisCommands in the way of a vector of strings.
