* Lazy initialise the worker pool
* Minimize pool initialization in core tests
* Fix tests on Python 3.4
* Remove passing in thread count to mock HASS
* Tests: Allow pool by default for threaded, disable for async
* Remove JobPriority for thread pool
* Fix wrong block_till_done
* EmulatedHue: Remove unused test code
* Zigbee: do not touch hass.pool
* Init loop in add_job
* Fix core test
* Fix random sensor test