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/MLQuestPersistence.cs

@@ -0,0 +1,71 @@
+using System;
+using System.Collections.Generic;
+using Server;
+using Server.Mobiles;
+
+namespace Server.Engines.MLQuests
+{
+	public class MLQuestPersistence : Item
+	{
+		private static MLQuestPersistence m_Instance;
+
+		public static void EnsureExistence()
+		{
+			if ( m_Instance == null )
+				m_Instance = new MLQuestPersistence();
+		}
+
+		public override string DefaultName
+		{
+			get { return "ML quests persistence - Internal"; }
+		}
+
+		private MLQuestPersistence()
+			: base( 1 )
+		{
+			Movable = false;
+		}
+
+		public MLQuestPersistence( Serial serial ) : base( serial )
+		{
+			m_Instance = this;
+		}
+
+		public override void Serialize( GenericWriter writer )
+		{
+			base.Serialize( writer );
+
+			writer.Write( (int) 2 ); // version
+			writer.Write( MLQuestSystem.Contexts.Count );
+
+			foreach ( MLQuestContext context in MLQuestSystem.Contexts.Values )
+				context.Serialize( writer );
+
+			writer.Write( MLQuestSystem.Quests.Count );
+
+			foreach ( MLQuest quest in MLQuestSystem.Quests.Values )
+				MLQuest.Serialize( writer, quest );
+		}
+
+		public override void Deserialize( GenericReader reader )
+		{
+			base.Deserialize( reader );
+
+			int version = reader.ReadInt();
+			int contexts = reader.ReadInt();
+
+			for ( int i = 0; i < contexts; ++i )
+			{
+				MLQuestContext context = new MLQuestContext( reader, version );
+
+				if ( context.Owner != null )
+					MLQuestSystem.Contexts[context.Owner] = context;
+			}
+
+			int quests = reader.ReadInt();
+
+			for ( int i = 0; i < quests; ++i )
+				MLQuest.Deserialize( reader, version );
+		}
+	}
+}