Renaming OwinMiddleware to OwinMiddlewareRegistration

Since there is a 1 to n association between such objects and middlewares (that are actually just the delegates that run in the pipeline) the terminology was confusing.

src/Orchard/Owin/IOwinMiddlewareProvider.cs

@@ -10,9 +10,9 @@ namespace Orchard.Owin {
     /// </remarks>
     public interface IOwinMiddlewareProvider : IDependency {
         /// <summary>
-        /// Gets Owin middlewares that will be injected into the Orchard Owin pipeline.
+        /// Gets <see cref="OwinMiddlewareRegistration"/> objects that will be used to alter the Orchard Owin pipeline.
         /// </summary>
-        /// <returns>Owin middlewares that will be injected into the Orchard Owin pipeline.</returns>
+        /// <returns><see cref="OwinMiddlewareRegistration"/> objects that will be used to alter the Orchard Owin pipeline.</returns>
-        IEnumerable<OwinMiddleware> GetOwinMiddlewares();
+        IEnumerable<OwinMiddlewareRegistration> GetOwinMiddlewares();
     }
 }

src/Orchard/Owin/OwinMiddlewareRegistration.cs

@@ -3,10 +3,10 @@ using Owin;
 
 namespace Orchard.Owin {
     /// <summary>
-    /// An Owin middleware representation that can make changes to the Owin pipeline, like registering middlewares to be injected into the Orchard 
+    /// An Owin middleware registration that can make changes to the Owin pipeline, like registering middlewares to be injected into the Orchard 
     /// Owin pipeline.
     /// </summary>
-    public class OwinMiddleware {
+    public class OwinMiddlewareRegistration {
         /// <summary>
         /// Gets or sets the delegate that you can use to make changes to the Owin pipeline, like registering middlewares to be injected into
         /// the Orchard Owin pipeline.
@@ -15,7 +15,7 @@ namespace Orchard.Owin {
 
         /// <summary>
         /// Gets or sets the priority value that decides the order in which such objects are processed. I.e. "0" will run before "10", 
-        /// but middlewares without a priority value will run before the ones that have it set.
+        /// but registrations without a priority value will run before the ones that have it set.
         /// Note that this priority notation is the same as the one for shape placement (so you can e.g. use ":before").
         /// </summary>
         public string Priority { get; set; }