* Opportunistically preserve Slack threading when parent thread in cache. [#529]
* Removed slack-specific processing from gateway.
* Added docs.
* Add option to enable threading, with default to off.
* Did cleanup on @42wim's comments.
* Update gateway/gateway.go
Co-Authored-By: patcon <patrick.c.connolly@gmail.com>
* Suggestion from @42wim :)
* Suggestions from @42wim.
* More suggestions.