Removes new namespaces: Umbraco.Core.Cookie, Umbraco.Core.Session, Umbraco.Core.Request, these are web things and should be part of one namespace

src/Umbraco.Core/Web/ICookieManager.cs

@@ -0,0 +1,11 @@
+namespace Umbraco.Web
+{
+    public interface ICookieManager
+    {
+        void ExpireCookie(string cookieName);
+        string GetCookieValue(string cookieName);
+        void SetCookieValue(string cookieName, string value);
+        bool HasCookie(string cookieName);
+    }
+
+}

src/Umbraco.Core/Web/IRequestAccessor.cs

@@ -0,0 +1,13 @@
+using System;
+using Umbraco.Web.Routing;
+
+namespace Umbraco.Web
+{
+    public interface IRequestAccessor
+    {
+        string GetRequestValue(string name);
+        string GetQueryStringValue(string culture);
+        event EventHandler<UmbracoRequestEventArgs> EndRequest;
+        event EventHandler<RoutableAttemptEventArgs> RouteAttempt;
+    }
+}

src/Umbraco.Core/Web/ISessionManager.cs

@@ -0,0 +1,8 @@
+namespace Umbraco.Web
+{
+    public interface ISessionManager
+    {
+        object GetSessionValue(string sessionName);
+        void SetSessionValue(string sessionName, object value);
+    }
+}