* Support abbreviations in discovery topic
* Add abbreviations for all words. Add testcase.
Add missing docstring.
* Add missing abbreviations
* Support topic prefix
* Update test case
* Restrict topic prefix
* Fix merge
* Simplify abbreviations expanding, assume TOPIC_PREFIX is one character long
* Support abbreviated keys instead of words
* Remove redundant abbreviations
* Remove extra spaces in abbreviation list
* Make topic prefix less restrictive
* Make topix prefix a bit more restrictive again
## 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**
* Add discovery support to mqtt climate component.
* - Fix flake8 error (./homeassistant/components/climate/mqtt.py:130:1: D202 No blank lines allowed after function docstring)
- Fix test error (since climate component was expected not to work - changed it to "lock" component, which also does not have MQTT discovery support yet)
* Fix old assert statement to reflect new lock component usage
* Change invalid MQTT discovery component type from 'lock' to 'timer', since contrary to the documentation the lock component is properly supported when using MQTT discovery.
* Make configuration of invalid MQTT config component a single point of entry to prevent missing the assertion later in the code when changing.
* Add new testcases to cover not-yet-covered code paths in https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/climate/mqtt.py
* Enable autodiscovery for mqtt cameras, BREAKING CHANGE: homogenisation topic->state_topic
* fix line too long
* fix topic->state_topic in test
* image shall not be the state of entity
* phue -> aiohue
* Clean up
* Fix config
* Address comments
* Typo
* Fix rebase error
* Mark light as unavailable when bridge is disconnected
* Tests
* Make Throttle work with double delay and async
* Rework update logic
* Don't resolve host to IP
* Clarify comment
* No longer do unnecessary updates
* Add more doc
* Another comment update
* Wrap up tests
* Lint
* Fix tests
* PyLint does not like mix 'n match async and coroutine
* Lint
* Update aiohue to 1.2
* Lint
* Fix await MagicMock