Added a "claimedLandsMax" option in config

(answering to issue "Max Faction Land" :
https://github.com/MassiveCraft/Factions/issues/88 )

src/com/massivecraft/factions/Conf.java

@@ -123,6 +123,7 @@ public class Conf
 	public static boolean claimsMustBeConnected = false;
 	public static boolean claimsCanBeUnconnectedIfOwnedByOtherFaction = true;
 	public static int claimsRequireMinFactionMembers = 1;
+	public static int claimedLandsMax = 0;
 	
 	//public static double considerFactionsReallyOfflineAfterXMinutes = 0.0;