Merge pull request #40 from peppy/dedupe-updated-beatmap-sets

De-dupe updated `beatmapset_id`s

Merge pull request #39 from peppy/reduce-bss-query-data

Reduce data received when querying database via `BeatmapStatusWatcher`

Merge pull request #38 from TheDomco/allow-blocking-pop

Add support for blocking pop instead of polling

Expose redis for arbitrary use

Merge pull request #37 from peppy/beatmap-metadata-watcher

Add helper class to watch for beatmap metadata changes

Add default value for cancellation token

Merge pull request #35 from smoogipoo/fix-redis-connection-delay

Merge pull request #34 from smoogipoo/fix-pooling-env-var

Fix inverted DB pooling value

Disable pipelining for now

Merge pull request #33 from peppy/fix-exception-handling

Fix exception handling when multiple items are involved