API Observation Health fonctionne! :)
Merge branch 'master' of https://github.com/FlavienKnuchel/Teaching-COMEM-MWS

# By Guillaume Lehmann (1) and others
# Via jrmeclt
* 'master' of https://github.com/FlavienKnuchel/Teaching-COMEM-MWS:
  may be
  back button
  groupOfPath mis en comm!

Conflicts:
	RESTBackEndSkeleton/src/main/java/ch/heigvd/skeleton/rest/PopulateDatabase.java