Add IDisposable interface to IDestination.
Fixes [AMQNET-473]. (See https://issues.apache.org/jira/browse/AMQNET-473)

diff --git a/src/main/csharp/IDestination.cs b/src/main/csharp/IDestination.cs
index e5b7b71..7f960c4 100644
--- a/src/main/csharp/IDestination.cs
+++ b/src/main/csharp/IDestination.cs
@@ -26,23 +26,18 @@
 		TemporaryQueue,
 		TemporaryTopic
 	}
-	
-	
+
 	/// <summary>
 	/// A base interface for destinations such as queues or topics
 	/// </summary>
-	public interface IDestination
+	public interface IDestination : System.IDisposable
 	{
-		
 		DestinationType DestinationType { get; }
 		
 		bool IsTopic { get; }
-		
 		bool IsQueue { get; }
-		
 		bool IsTemporary { get; }
 	}
-	
 }
 
 
diff --git a/src/test/csharp/Commands/Destination.cs b/src/test/csharp/Commands/Destination.cs
index 2eea455..58c7749 100755
--- a/src/test/csharp/Commands/Destination.cs
+++ b/src/test/csharp/Commands/Destination.cs
@@ -49,6 +49,8 @@
         private String physicalName = "";
         private StringDictionary options = null;
 
+		private bool disposed = false;
+
         /// <summary>
         /// The Default Constructor
         /// </summary>
@@ -65,7 +67,47 @@
             setPhysicalName(name);
         }
 
-        public bool IsTopic
+		~Destination()
+		{
+			Dispose(false);
+		}
+
+		public void Dispose()
+		{
+			Dispose(true);
+			GC.SuppressFinalize(this);
+		}
+
+		private void Dispose(bool disposing)
+		{
+			if(disposed)
+			{
+				return;
+			}
+
+			if(disposing)
+			{
+				try
+				{
+					OnDispose();
+				}
+				catch(Exception ex)
+				{
+					Tracer.ErrorFormat("Exception disposing Destination {0}: {1}", this.physicalName, ex.Message);
+				}
+			}
+
+			disposed = true;
+		}
+
+		/// <summary>
+		/// Child classes can override this method to perform clean-up logic.
+		/// </summary>
+		protected virtual void OnDispose()
+		{
+		}
+
+		public bool IsTopic
         {
             get
             {