Replaces producer/consumer with publisher/subscriber, and introduces new terms for the Original Publisher, End Subscriber and relay. Also replaced some instances of sender/receiver with publisher/subscriber, except instances that were referring to a particular message.
Added Upstream and Downstream to the definitions section. Upstream has two uses so far and downstream has none.
Replaces producer/consumer with publisher/subscriber, and introduces new terms for the Original Publisher, End Subscriber and relay. Also replaced some instances of sender/receiver with publisher/subscriber, except instances that were referring to a particular message.
Added Upstream and Downstream to the definitions section. Upstream has two uses so far and downstream has none.
Fixes: #157 Fixes: #229 Fixes: #438