* Initial pass of cleanup for shabbat_times
* Switch to async defs
* First pass of unit tests + fixture data
* Completion of first round of unit tests, 100% passing
* Unit tests for state restoring
* Style fixes
* More style fixes
* Lint fix
* Add upcoming candelighting and havdalah sensors
* Add unit tests, remove havdalah offset
* More unit tests + small bugfix for weekly_portion
* Add issur melacha sensor
* Remove old shabbat_times work-in-progress files
* Bump required version of hdate
* Add havdalah offset config parameter
* Bump hdate version required
* Pin hdate requirement
* Lint fixes
* Changes based on review + API changes for hdate 0.8.7
* Add three-day holiday unit tests
* Remove debugging line
* Add missing docstring
* Fix doc lint comment