* Refactor matrix notify service.
This refactor aims to close#6118 by making the save / restore of the
authentication tokens much more resilient to failure.
It also refactors the module so that all the functionality is part of the class
and that a login failure causes the service to fail on setup rather than at
message send time.
* Make the linter overlords happy
* Improve logger levels and messages
* small style change
* Fix indentation issue
* updated pylgtv module to fix problems with timeouts
* - update pylgtv to 0.1.6
- handle new TimeoutError exception from pylgtv
* used full name for exception handling of concurrent.futures._base.TimeoutError
* the exception handling should now follow the rules
* float typecasting should not be necessary
* use asyncio for TimeoutError it’s an alias for concurrent.futures.TimeoutError
* Add link to docs and remove comments which are obvious
* Update docstrings
* Repleace conf details with link to docs
* Add link to docs
* Update docstrings
* Update import
* Update ordering
* Update ordering
* Update docstring
* Update ordering
* Update ordering
* Update to pylgtv 0.1.4
* Send icon with webostv notifications
Default to the homeassistant logo, but allow customizing it on the
component and for individual notifications
* new component telegram_webhooks
* keyboard support in telegram notify
* telegram_webhooks has no tests
* requirement like notify/telegram
* ops, requirements_all.txt needed for travis
* ops, requirements_all.txt is generated by script/gen_requirements_all.py
* check telegram trusted networks in web handler
* raise an event now
* use of hass.config.api.base_url
* more readable
* small cleanups
* Small style change for HA guideline
* fix lint
* revert return to origin
* Mailgun notify service
* Update dependency to version 1.3
- The provided credentials (including the domain) are now checked during
startup, as requested by @balloob
- The domain name is now optional
- There's a new config item "sandbox" which indicates whether to use the
sandboxed domain in case the domain is not set
* Fix a few lint issues
* Disable lint check no-value-for-parameter
* Added error checking to the MIMEImage encoding for smtp.py
Added fallback to file attachment rather than inline image for images
without a known MIME
* PEP8 reqs to fix previous commit
