1. Added HttpNotFound() to Controller.
2. Updated HttpStatusCodeResult to expose the StatusCode as a property.
3. Added unit tests for HttpNotFound() and for HttpStatusCodeResult.
4. Updated the MvcSample to add an action that uses HttpNotFound().
5. Brought back HttpNotFoundResult and added unit tests for it.
The issue here is actually different than described in the bug.
ResultFilter should only short circuit when .Cancel is set to true. This
is consistent with legacy MVC.
Added tests for all of this stuff. There's already good test coverage for
the invoker, what was missing was coverage for the attributes and for the
methods on Controller. ExceptionFilterAttribute and
AuthorizationFilterAttribute don't have short circuiting logic inside of
them, so they are already covered by tests for the invoker.
- move `DynamicObject` derivation up to new `DynamicViewData` class, fixing [WebFx-169](http://projectk-tc:8080/browse/WEBFX-169)
- avoid direct `_data` lookup in previous `TryGetMember()`, fixing [#118](https://github.com/aspnet/WebFx/issues/118)
- rename ViewData -> ViewDataDictionary
Also
- flesh out `IDictionary<string, object>` implementation in `ViewData`
- provide `ViewData` copy constructor that allows TModel to change
- remove `TryGetIndex()` and `TrySetIndex()` implementations; use `ViewData[]` instead
- restore `ViewContext.ViewBag` from legacy MVC
Javier Calvarro Nelson
Pranav K
Tian Pan
Ryan Nowak
Andrew Peters
Sornakumar
dougbu