Improved error handling in the _raw_request() function in eneffco.py to handle...
requested to merge 198-read_series_eneffco-py-does-not-provide-correct-error-message-when-entering-wrong-server into development
Improved error handling in the _raw_request() function in eneffco.py to handle errors, that lead to invalid JSON content and crashed the previous error handling.
Closes #198 (closed)