* Add async_safe annotation
* More async_run_job
* coroutine -> async_save
* Lint
* Rename async_safe -> callback
* Add tests to core for different job types
* Add one more test with different type of callbacks
* Fix typing signature for callback methods
* Fix callback service executed method
* Fix method signatures for callback
* Move worker pool monitoring to be time based instead of add_job based.
* Stub out worker pool monitor during tests
* Add test for monitor worker pool.
* Improve naming
* Test stop_monitor coroutine
* Add async_create_timer test
* Finish rename create_timer
* Add event loop to the core
* Add block_till_done to HA core object
* Fix some tests
* Linting core
* Fix statemachine tests
* Core test fixes
* fix block_till_done to wait for loop and queue to empty
* fix test_core for passing, and correct start/stop/block_till_done
* Fix remote tests
* Fix tests: block_till_done
* Fix linting
* Fix more tests
* Fix final linting
* Fix remote test
* remove unnecessary import
* reduce sleep to avoid slowing down the tests excessively
* fix remaining tests to wait for non-threadsafe operations
* Add async_ doc strings for event loop / coroutine info
* Fix command line test to block for the right timeout
* Fix py3.4.2 loop var access
* Fix SERVICE_CALL_LIMIT being in effect for other tests
* Fix lint errors
* Fix lint error with proper placement
* Fix slave start to not start a timer
* Add asyncio compatible listeners.
* Increase min Python version to 3.4.2
* Move async backports to util
* Add backported async tests
* Fix linting
* Simplify Python version check
* Fix lint
* Remove unneeded try/except and queue listener appproriately.
* Fix tuple vs. list unorderable error on version compare.
* Fix version tests