* new geo rss events sensor
* SCAN_INTERVAL instead of DEFAULT_SCAN_INTERVAL
* removed redefinition CONF_SCAN_INTERVAL
* definition of self._name not required
* removed unnecessary check and unnecessary parameter
* changed log levels
* fixed default name not used
* streamlined sensor name and entity id generation, removed unnecessary parameter
* fixed issue for entries without geometry data
* fixed tests after code changes
* simplified code
* simplified code; removed unnecessary imports
* fixed invalid variable name
* shorter sensor name and in turn entity id
* increasing test coverage for previously untested code
* fixed indentation and variable usage
* simplified test code
* merged two similar tests
* fixed an issue if no data could be fetched from external service; added test case for this case
