* Move more constants to const.py
* Import constants directly from const
* ATTR_ENTITY_ID is not defined in media_player
* MEDIA_PLAYER_PLAY_MEDIA_SCHEMA is still in __init__.py
* Correct imports in tts
* PLATFORM_SCHEMA, SCHEMA is still defined in __init__.py
* Pandora imports several services
* Some additional fixes for move of const in media_player
* Fix hound lengths
* Improve volume support for Vizio Smartcast
* Vizio: avoid an error when 'self._device.get_current_volume()' returns 'None'
* Improve volume support for Vizio Smartcast
* Vizio: avoid an error when 'self._device.get_current_volume()' returns 'None'
* First line should end with a period
* Update request requirement
Update request requirement from version v2.14.2 to v2.18.4
* Fix dependency vizio integration
3rd patry packages were removed from requests. Changed dependency from requests to urllib3
* forgot =
forgot = when adding the requirement
* re-run script/gen_requirements_all.py
re-run script/gen_requirements_all.py
* Unvendoring urllib3 from requests
In v2.16.0 and newer of requests they unverdored urllib3.
* undefined name 'InsecureRequestWarning'
* Removed requirement to 'urllib3==1.22
* removed import requests
* removed urllib3.exceptions.InsecureRequestWarning
removed urllib3.exceptions.InsecureRequestWarning travis lint