Release n2.8

Full Changelog: n2.7.1.3...n2.8
See test_reporter.py: a forwarder can now return its success status not only as True or False, but also in form of a dict.

            return {
                "success": True,
                "report_payload": {
                    "number": "INC00000000",
                    "message": self.signature,
                }
            }

This way it is possible to transport valuable information into a reporter. (which may annotate a service with a ticket number)