[JIRA] (BIT-1319) topic/jsiwek/broker

Didn't do anything about adding synchronous data store query API,
maybe that's an improvement we can think about for later?

Yeah, I'm still mulling over that. Let's chat a bit about that next
week, it's certainly not a must-have right now.

So not much here is probably that critical to review; let me know if
you just want me to merge it (but I'd still like if you could let me
know about the unit tests that failed before).

Just go ahead and merge, I'll try the tests later. THanks for the
renaming. Great to see we have Python bindings!