Merge in the changes from the original Aurora-LibOMV branch (missing a few optimizations that change a lot of base types, not included as I'd rather stick closer to master at this point).

OpenMetaverse.StructuredData/StructuredData.cs

@@ -101,6 +101,7 @@ namespace OpenMetaverse.StructuredData
         public virtual Vector4 AsVector4() { return Vector4.Zero; }
         public virtual Quaternion AsQuaternion() { return Quaternion.Identity; }
         public virtual Color4 AsColor4() { return Color4.Black; }
+        public virtual OSD Copy() { return new OSD(); }
 
         public override string ToString() { return "undef"; }
 
@@ -289,6 +290,20 @@ namespace OpenMetaverse.StructuredData
                 else
                     return Quaternion.Identity;
             }
+            else if (type == typeof(OSDArray))
+            {
+                OSDArray newArray = new OSDArray();
+                foreach (OSD o in (OSDArray)value)
+                    newArray.Add(o);
+                return newArray;
+            }
+            else if (type == typeof(OSDMap))
+            {
+                OSDMap newMap = new OSDMap();
+                foreach (KeyValuePair<string, OSD> o in (OSDMap)value)
+                    newMap.Add(o);
+                return newMap;
+            }
             else
             {
                 return null;
@@ -418,6 +433,7 @@ namespace OpenMetaverse.StructuredData
         public override double AsReal() { return value ? 1d : 0d; }
         public override string AsString() { return value ? "1" : "0"; }
         public override byte[] AsBinary() { return value ? trueBinary : falseBinary; }
+        public override OSD Copy() { return new OSDBoolean(value); }
 
         public override string ToString() { return AsString(); }
     }
@@ -444,6 +460,7 @@ namespace OpenMetaverse.StructuredData
         public override double AsReal() { return (double)value; }
         public override string AsString() { return value.ToString(); }
         public override byte[] AsBinary() { return Utils.IntToBytesBig(value); }
+        public override OSD Copy() { return new OSDInteger(value); }
 
         public override string ToString() { return AsString(); }
     }
@@ -463,7 +480,8 @@ namespace OpenMetaverse.StructuredData
         }
 
         public override bool AsBoolean() { return (!Double.IsNaN(value) && value != 0d); }
-        
+        public override OSD Copy() { return new OSDReal(value); }
+       
         public override int AsInteger()
         {
             if (Double.IsNaN(value))
@@ -524,6 +542,8 @@ namespace OpenMetaverse.StructuredData
 
         public override OSDType Type { get { return OSDType.String; } }
 
+        public override OSD Copy() { return new OSDString(value); }
+
         public OSDString(string value)
         {
             // Refuse to hold null pointers
@@ -633,6 +653,7 @@ namespace OpenMetaverse.StructuredData
             this.value = value;
         }
 
+        public override OSD Copy() { return new OSDUUID(value); }
         public override bool AsBoolean() { return (value == UUID.Zero) ? false : true; }
         public override string AsString() { return value.ToString(); }
         public override UUID AsUUID() { return value; }
@@ -690,6 +711,7 @@ namespace OpenMetaverse.StructuredData
             return Utils.DoubleToBytes(ts.TotalSeconds);
         }
 
+        public override OSD Copy() { return new OSDDate(value); }
         public override DateTime AsDate() { return value; }
         public override string ToString() { return AsString(); }
     }
@@ -720,6 +742,7 @@ namespace OpenMetaverse.StructuredData
             return string.Empty;
         }
 
+        public override OSD Copy() { return new OSDUri(value); }
         public override Uri AsUri() { return value; }
         public override byte[] AsBinary() { return Encoding.UTF8.GetBytes(AsString()); }
         public override string ToString() { return AsString(); }
@@ -783,6 +806,7 @@ namespace OpenMetaverse.StructuredData
             };
         }
 
+        public override OSD Copy() { return new OSDBinary(value); }
         public override string AsString() { return Convert.ToBase64String(value); }
         public override byte[] AsBinary() { return value; }
 
@@ -861,6 +885,11 @@ namespace OpenMetaverse.StructuredData
             return OSDParser.SerializeJsonString(this, true);
         }
 
+        public override OSD Copy()
+        {
+            return new OSDMap(new Dictionary<string, OSD>(value));
+        }
+
         #region IDictionary Implementation
 
         public int Count { get { return value.Count; } }
@@ -1086,6 +1115,11 @@ namespace OpenMetaverse.StructuredData
             return color;
         }
 
+        public override OSD Copy()
+        {
+            return new OSDArray(new List<OSD>(value));
+        }
+
         public override bool AsBoolean() { return value.Count > 0; }
 
         public override string ToString()