Implementation de la touche "a"
Merge remote-tracking branch 'origin/formationTeam' into testBen

Conflicts:
	src/com/buchbuchteam/buchbuch/model/Team.java
	src/com/buchbuchteam/buchbuch/view/GameScreen.java
Mise à jour arbres background
Merge remote-tracking branch 'origin/testBen' into formationTeam

Conflicts:
	src/com/buchbuchteam/buchbuch/view/GameScreen.java
Fleche gauche et droite
nbBuch -> team.size()
Merge remote-tracking branch 'origin/testBen' into formationTeam
Correction de l'utilisation des touches LEFT RIGHT
Ajout getX dans team
Merge remote-tracking branch 'origin/testBen' into formationTeam