Fix AttributeError: 'ConnectionError' object has no attribute 'message' bug
Fix AttributeError: 'ConnectionError' object has no attribute 'message' bug

This commit:

* fix https://github.com/mstuttgart/pycep-correios/issues/68
* fix https://github.com/mstuttgart/pycep-correios/issues/73

mstuttgart/pycep-correios