Starting to get a UI around content type management

- added a DisplayName to the ContentTypeDefinition
- added a CreateRouteValues rvd to go along with the existing display and edit
- set default display, edit and create route values for ContentItemMetadata (* should get fallback route values in a different manner. probably not good to refer to an area, even by string, in core from the fwk)
- starting to shape up the content type list into a more consistent UI
- added create type action, view, etc. for creating new content types
 - supporting service has a few default parts hard-coded for now

--HG--
branch : dev

src/Orchard.Web/Modules/Orchard.Blogs/Drivers/BlogPostDriver.cs

@@ -40,6 +40,9 @@ namespace Orchard.Blogs.Drivers {
         }
 
         public override RouteValueDictionary GetDisplayRouteValues(BlogPost post) {
+            if (post.Blog == null)
+                return new RouteValueDictionary();
+
             return new RouteValueDictionary {
                                                 {"Area", "Orchard.Blogs"},
                                                 {"Controller", "BlogPost"},
@@ -50,6 +53,9 @@ namespace Orchard.Blogs.Drivers {
         }
 
         public override RouteValueDictionary GetEditorRouteValues(BlogPost post) {
+            if (post.Blog == null)
+                return new RouteValueDictionary();
+
             return new RouteValueDictionary {
                                                 {"Area", "Orchard.Blogs"},
                                                 {"Controller", "BlogPostAdmin"},
@@ -59,6 +65,18 @@ namespace Orchard.Blogs.Drivers {
                                             };
         }
 
+        public override RouteValueDictionary GetCreateRouteValues(BlogPost post) {
+            if (post.Blog == null)
+                return new RouteValueDictionary();
+
+            return new RouteValueDictionary {
+                                                {"Area", "Orchard.Blogs"},
+                                                {"Controller", "BlogPostAdmin"},
+                                                {"Action", "Create"},
+                                                {"blogSlug", post.Blog.Slug},
+                                            };
+        }
+
         protected override DriverResult Display(BlogPost post, string displayType) {
             return Combined(
                 ContentItemTemplate("Items/Blogs.BlogPost").LongestMatch(displayType, "Summary", "SummaryAdmin"),