* Do not post close callback in ops queue if not started.
Ops queue is started in `Bind()`. If `Close()` is called
when bind did not happen (because the underlying peer connection
closed before bind), the close callback does not run.
Check if ops queue is running before posting close callback
into the queue.
Not pretty, but covers this case. Need to think about it more.
* correct check
* Use delta stats throughout and avoid calculating deltas in telemetry
* Fix a few things after testing
* Remove debug
* Fix tests
* delete instead of setting to nil
* Point to the latest protocol
* Introducing OpsQueue
Creating a PR to get feedback on standardizing on this concept.
Can be used for callbacks.
Already a couple of places use this construct. Wondering if we
should standardize on this across the board.
Just changing one place to use the new struct. Another place
that I know of which uses this pattern is the telemetry package.
* atomic flag -> bool
* include packet and system info with node stats
* add more packet and system stats
* revert magefile, clean up system stats error handling
* update procol version
* dz review: error return
* protobuf updates to support new protocol
* use dedicated publish & subscribe peerconnections
* update client to work with dedicated PCs
* fix Go client negotiation, reduced length of UUID
