Fix stylecop in Microsoft.AspNet.Mvc
Fixing style issues in Mvc.Core
activate line length rule
Introducing ChallengeResult to call Response.Challenge()
Issue #65 merge RoutingContext and RequestContext

See the relevant PR in aspnet/Routing#60.

This incorporates the breaking changes.
changing to use list instead of stack
fix a build break due to api change
setting line length to 120 to match our guidelines
Cache action descriptor providers and provide a race safe data structure to get the version.
The default implementation has a safe race, and does not allow for action description addition at runtime.

It can be replaced with an implementation that can reload.

Consumers of the new service that do extra caching are now responsible to look at the version and change the implementation.
Mvc Changes corresponding to Routing DI changes. Refer pr#63
fixing stylecop in .Mvc and .Mvc.Common
Use default values when binding action arguments

Fixes #545
Clean up trailing whitespace in Core project
- checked and found no tabs in this project :smile:
Remove ActionResultHelper (Fix #597).
Still keep a POCO controller.
Add unit tests for action results. Bring back property injection for Home2Controller.cs.