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/Engines/MLQuests/Items/PrismaticCrystal.cs

@@ -0,0 +1,72 @@
+using System;
+using Server;
+using Server.Engines.MLQuests;
+using Server.Engines.MLQuests.Definitions;
+using Server.Mobiles;
+using Server.Network;
+
+namespace Server.Items
+{
+	public class PrismaticCrystal : Item
+	{
+		public override int LabelNumber{ get{ return 1074269; } } // prismatic crystal
+
+		[Constructable]
+		public PrismaticCrystal() : base( 0x2DA )
+		{
+			Movable = false;
+			Hue = 0x32;
+		}
+
+		public PrismaticCrystal( Serial serial ) : base( serial )
+		{
+		}
+
+		public override void OnDoubleClick( Mobile from )
+		{
+			PlayerMobile pm = from as PlayerMobile;
+
+			if ( pm == null || pm.Backpack == null )
+				return;
+
+			if ( pm.InRange( GetWorldLocation(), 2 ) )
+			{
+				MLQuestContext context = MLQuestSystem.GetContext( pm );
+
+				if ( context != null && context.IsDoingQuest( typeof( UnfadingMemoriesPartOne ) ) && pm.Backpack.FindItemByType( typeof( PrismaticAmber ), false ) == null )
+				{
+					Item amber = new PrismaticAmber();
+
+					if ( pm.PlaceInBackpack( amber ) )
+					{
+						MLQuestSystem.MarkQuestItem( pm, amber );
+						Delete();
+					}
+					else
+					{
+						pm.SendLocalizedMessage( 502385 ); // Your pack cannot hold this item.
+						amber.Delete();
+					}
+				}
+				else
+					pm.SendLocalizedMessage( 1075464 ); // You already have as many of those as you need.
+			}
+			else
+				pm.LocalOverheadMessage( MessageType.Regular, 0x3B2, 1019045 ); // I can't reach that.
+		}
+
+		public override void Serialize( GenericWriter writer )
+		{
+			base.Serialize( writer );
+
+			writer.Write( (int) 0 ); // Version
+		}
+
+		public override void Deserialize( GenericReader reader )
+		{
+			base.Deserialize( reader );
+
+			int version = reader.ReadInt();
+		}
+	}
+}