* Initial work on config_flow
* Finish config flow
* Pylint checks, make sure the import only happens once
* Added support for unloading, small fixes
* Check in the hassfest output files
* Flake8 fixes
* pylint mistake after flake8 fixes
* Work on comments
* Abort the import if it is already imported
* More comments resolved
* Added testcases for velbus config flow
* Fix pylint and flake8
* Added connection test to the config flow
* More sugestions
* renamed the abort reason
* excluded all but the config_flow.py from the velbus component in coveragerc
* Rewrote testcases with a patched version of _test_connection
* Docstyle fixes
* Updated the velbus testcases
* just yield
* flake8 fixes
