* 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
* Fix: Circular dependencies of internal files
* Change: dt.date for Date and dt.datetime for DateTime
* Use NewType if available
* FIX: Wrong version test
* Remove: Date and DateTime types due to error
* Change to HomeAssistantType
* General Improvement of Typing
* Improve typing config_validation
* Improve typing script
* General Typing Improvements
* Improve NewType check
* Improve typing db_migrator
* Improve util/__init__ typing
* Improve helpers/location typing
* Regroup imports and remove pylint: disable=ungrouped-imports
* General typing improvements
* Fix deprecated(moved) import
* Add util/dt typing
* Green on mypy util/dt
* Fix some errors
* First part of yping util/yaml
* Add more typing to util/yaml