ML quest system; first SVN release.

Secondary changes:
- Region fixes, mainly for New Haven.
- Recipe system changes.
- Enabled ML craftables.
- Dyeing/cutting restrictions for quest items.
- Moved IsInvulnerable from BaseVendor to BaseCreature.
- Moved RandomBrightHue to Utility.
- Items no longer decay when attached to a spawner.
- Quest item hue is now faked through packets, instead of overriding Hue.
- Re-enabled item drag effects for SA clients.
- Fixed AssignRandomFacialHair bug in Utility.
- Added random hue comments to Utility.

Scripts/Mobiles/Vendors/SBInfo/SBInfo.cs

@@ -6,11 +6,13 @@ namespace Server.Mobiles
 {
 	public abstract class SBInfo
 	{
+		public static readonly List<SBInfo> Empty = new List<SBInfo>();
+
 		public SBInfo()
 		{
 		}
 
 		public abstract IShopSellInfo SellInfo { get; }
-        public abstract List<GenericBuyInfo> BuyInfo { get; }
+		public abstract List<GenericBuyInfo> BuyInfo { get; }
 	}
-}
+}