Fix orthograph

There are some orthography errors in the source code and logs. It would be nice to fix them, but that would break backwards-compatibility with previous experimental campaigns like https://gitlab.irit.fr/sepia-pub/open-science/demand-response-user or https://gitlab.irit.fr/sepia-pub/open-science/stage-jolyne .

List of known orthography errors:

• DMUser -> DRUser (like "Demand Response")
• renonce -> renounce