Added back/exit button to challenge-main.

Output/PartyModes/Challenge/Languages/French.xml

@@ -11,6 +11,9 @@
 		<TR_BUTTON_NEXT>TODO: Next</TR_BUTTON_NEXT>
 		<TR_BUTTON_BACK>Retour</TR_BUTTON_BACK>
 		<TR_BUTTON_START>Démarrer</TR_BUTTON_START>
+		<TR_BUTTON_EXIT>Quitter</TR_BUTTON_EXIT>
+		<TR_BUTTON_YES>Oui</TR_BUTTON_YES>
+		<TR_BUTTON_NO>Non</TR_BUTTON_NO>		
 		<TR_BUTTON_NEXT_ROUND>TODO: Next Round</TR_BUTTON_NEXT_ROUND>
 		<!--ScreenConfig-->
 		<TR_SCREENCONFIG_TITLE>TODO: Challenge Mode: Configuration</TR_SCREENCONFIG_TITLE>
@@ -27,5 +30,6 @@
 		<TR_SCREENMAIN_TABLE_WON>TODO: Wins</TR_SCREENMAIN_TABLE_WON>
 		<TR_SCREENMAIN_TABLE_SINGPOINTS>TODO: Sing Points</TR_SCREENMAIN_TABLE_SINGPOINTS>
 		<TR_SCREENMAIN_TABLE_GAMEPOINTS>TODO: Score</TR_SCREENMAIN_TABLE_GAMEPOINTS>
+		<TR_SCREENMAIN_POPUP_REALLYEXIT>TODO: Do you really want to exit?</TR_SCREENMAIN_POPUP_REALLYEXIT>		
 	</Texts>
 </root>