edges checked and comments
Merge branch 'master' of https://github.com/goldenouille/ProjetLong

Conflicts:
	model/BinaryAssociation.java
	model/Composition.java
	model/Dependancy.java
	model/DirectionalRelation.java
	model/Edge.java
	model/Generalization.java
	model/Heritage.java
	model/Realization.java
Merge branch 'master' of https://github.com/goldenouille/ProjetLong