Adding the umbraco:image control, and the ImageUrl feature with a some generic ProviderFeature classes, to make it easier to implement future provider based features.

src/Umbraco.Core/ObjectResolution/WebHttpContextFactory.cs

@@ -0,0 +1,12 @@
+using System.Web;
+
+namespace Umbraco.Core.ObjectResolution
+{
+    public class WebHttpContextFactory : IHttpContextFactory
+    {
+        public HttpContextBase Context
+        {
+            get { return new HttpContextWrapper(HttpContext.Current); }
+        }
+    }
+}