Made WcfService and WebService independent of IMessage. Closes 377

Author: udidahan

src/integration/NServiceBus.Integration.WCF/IWcfService.cs

@@ -9,7 +9,7 @@ namespace NServiceBus
     /// <typeparam name="TRequest"></typeparam>
     /// <typeparam name="TResponse"></typeparam>
     [ServiceContract]
-    public interface IWcfService<TRequest, TResponse> where TRequest : IMessage
+    public interface IWcfService<TRequest, TResponse>
     {
         /// <summary>
         /// Sends the message to the messaging endpoint.

src/integration/NServiceBus.Integration.WCF/WcfService.cs

@@ -10,7 +10,7 @@ namespace NServiceBus
     /// <typeparam name="TResponse"></typeparam>
     [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall, 
                      ConcurrencyMode = ConcurrencyMode.Multiple)]
-    public abstract class WcfService<TRequest, TResponse> : IWcfService<TRequest, TResponse> where TRequest : IMessage
+    public abstract class WcfService<TRequest, TResponse> : IWcfService<TRequest, TResponse>
     {
         protected WcfService()
         {

src/integration/WebServices/NServiceBus.Integration.WebServices/Webservice.cs

@@ -12,7 +12,7 @@ namespace NServiceBus
     [WebService(Namespace = "http://tempuri.org/")]
     [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
     [ToolboxItem(false)]
-    public abstract class Webservice<TRequest, TResponse> : WebService where TRequest : IMessage
+    public abstract class Webservice<TRequest, TResponse> : WebService
     {
         /// <summary>
         /// Static constructor that checks that the type TResponse is an enum.