started to implement loadFromXML
Merge branch 'master' into feature/XML

Conflicts:
	.gitignore
	OptiFret/src/view/DeliverySheetFrame.java
Merge branch 'master' of https://github.com/dragibus-4if/dragibus-devoo into feature/XML
xml roadnetwork fini d'implementer, pas fini de tester
Merge branch 'feature/XML' of https://github.com/dragibus-4if/dragibus-devoo into feature/XML
ajouté les méthodes equals, hashcode de roadnetwork
méthode getnodes de roadnetwork implémentée
quelques bugs fixés
Merge remote-tracking branch 'origin/feature/XML' into develop

Conflicts:
	.gitignore
	OptiFret/src/model/RoadNetwork.java
	OptiFret/src/view/DeliverySheetFrame.java
	OptiFret/test/test/RoadNetworkTest.java