ajout des methodes recuperDocument(), recupererMotclef() et recupererCategorieMotClef()
Merge branch 'master' of https://github.com/maxnicpie/projetpoo

Conflicts:
	ProjetPOO/src/Domaine.java
Merge branch 'master' of https://github.com/maxnicpie/projetpoo

Conflicts:
	ProjetPOO/src/Domaine.java