fix
Merge branch 'reseau' of https://github.com/Aethia/LONDON into graphic_ui
chat scrollbar cote serveur
UI chat client/serveur, creation classe Chat
Refactoring des menus : Classes MenuActions et MenuGlobal, fix fonction construire carte non constructible
Merge branch 'graphic_ui' of https://github.com/Aethia/LONDON into reseau

Conflicts:
	London/src/fr/m1/miage/london/network/client/Client.java
	London/src/fr/m1miage/london/ui/screens/ChatReseauScreenClient.java
	London/src/fr/m1miage/london/ui/screens/GameScreenReseauClient.java
	London/src/fr/m1miage/london/ui/screens/GameScreenReseauServeur.java