* Reduced a time an internal lock is held which should eliminate deadlocks in high-traffic networks.
* Stopped asking questions we already have answers for in cache, thanks to Paul Daumlechner.
* Removed initial delay before querying for service info, thanks to Erik Montnemery.
* Fixed a resource leak connected to using ServiceBrowser with multiple types
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-zeroconf?expand=0&rev=36