Show excited, happy, neutral, sad, dead emoticon, or biohazard icon,
based on air pollution level.
Also, fix a small typo and change air quality index icon to
`mdi:chart-line`. Seems a bit more logical.
## Description:
More fixes flagged by pylint 2 that don't hurt to have before the actual pylint 2 upgrade (which I'll submit soon).
## Checklist:
- [ ] The code change is tested and works locally.
- [x] Local tests pass with `tox`. **Your PR cannot be merged unless tests pass**
* AirVisual: Entity Registry updates and cleanup
* Small cleanup
* Owner-requested changes
* Changed hashing function
* Put a better class instatiation mechanism in place
* Small cleanup
* Reverting unintended breaking change
* Removing hashing as part of creating the unique ID
* Attempting to jumpstart Travis
* Adds the AirVisual air quality sensor platform
* Updated .coveragerc
* Removed some un-needed code
* Adding strangely-necessary pylint disable
* Removing a Python3.5-specific dict combiner method
* Restarting stuck coverage test
* Added units to AQI sensor (to get nice graph)
* Making collaborator-requested changes
* Removing unnecessary parameter from data object
Oleksii Serdiuk
Aaron Bach
Paulus Schoutsen
Ville Skyttä
Thiago Oliveira
Fabian Affolter