* Initialise filter with historical values
Added get_last_state_changes()
* fix test
* Major changes to accommodate history + time_SMA
# Conflicts:
# homeassistant/components/sensor/filter.py
* hail the hound!
* lint fixed
* less debug
* ups
* get state from the proper entity
* sensible default
* No defaults in get_last_state_changes
* list_reverseiterator instead of list
* prev_state to state
* Initialise filter with historical values
Added get_last_state_changes()
* fix test
* Major changes to accommodate history + time_SMA
# Conflicts:
# homeassistant/components/sensor/filter.py
* hail the hound!
* lint fixed
* less debug
* ups
* get state from the proper entity
* sensible default
* No defaults in get_last_state_changes
* list_reverseiterator instead of list
* prev_state to state
* update
* added window_unit
* replace isinstance with window_unit