Tons of fixes - WIP

homeassistant/components/alexa.py

homeassistant/components/api.py

homeassistant/components/camera/__init__.py

homeassistant/components/camera/mjpeg.py

homeassistant/components/device_tracker/locative.py

homeassistant/components/frontend/__init__.py

homeassistant/components/history.py

homeassistant/components/http.py

homeassistant/components/logbook.py

homeassistant/components/sensor/fitbit.py

homeassistant/components/sensor/torque.py

homeassistant/components/wsgi.py

homeassistant/helpers/event.py

homeassistant/remote.py

requirements_all.txt

tests/common.py

tests/components/device_tracker/test_locative.py

tests/components/test_alexa.py

tests/components/test_api.py

tests/components/test_frontend.py