Merge pull request #1 from LO23/master

Update
Merge pull request #2 from LO23/master

Update
Merge pull request #1 from LO23/master

Update
correction des noms de packages
Création objet Song
Ajout Exception Insufficient rights
Class implementation
merge
Merge pull request #33 from VincentCharpentier/Vincent

correction des noms de packages
Merge pull request #35 from Elthum/master

[Music]Création objet Song
Merge pull request #36 from jibzou/master

[Music] Grade Class implementation
strategy deleted
Corrections générales sur la structure (WindowComponent indépendant), modification des constructeurs des AbstractView et AbstractController
Merge branch 'master' of https://github.com/LO23/BitMusic into IHM_corrections
Merge pull request #37 from kofronpi/deleteStrategy

[NETWORK]strategy deleted
Implémentation de la classe Rights
MAJ Implémentation de la classe Rights
Merge pull request #38 from dohaben1/master

{Music} Right class implementation
Merge pull request #39 from unkedeuxke/IHM_corrections

[IHM] Corrections