0.37.0

Technically backwards incompatible:

* Adding a listener that does not inherit from RecordUpdateListener now logs an error (#1034) @bdraco

* The NotRunningException exception is now thrown when Zeroconf is not running (#1033) @bdraco

Before this change the consumer would get a timeout or an EventLoopBlocked

exception when calling `ServiceInfo.*request` when the instance had already been shutdown

or had failed to startup.

* The EventLoopBlocked exception is now thrown when a coroutine times out (#1032) @bdraco

Previously `concurrent.futures.TimeoutError` would have been raised

instead. This is never expected to happen during normal operation.