Merge pull request #36 from Toranos/release2

Release2
Ajout exports and addNote addPicture et AddComment
Ajout arg description, lightUser, getNoteAverage
Modification UUID en lightUser
Merge pull request #37 from Toranos/aurelie/release2

Aurelie/release2
Merge pull request #38 from Toranos/release2

picture service
resolved conflicts