This is a first step in the "Context Everywhere" update and will make it
possible for us to access the context from inside views

Also upadated the DefaultViewResolver so that is calls the current
IViewLocator with the context of the current request

Added a second parameter to the Match method and updated the
DefaultRouteResolver to call the matcher with the context

Also updated the DefaultRoutePatternMatcher so it passes in the correct
context to the result. Also updated the FakeRoutePatternMatchResult
type to have the new property.

It's now possible to set the Context property, of the fake
pattern match response, using the configurator.

The IErrorHandler.HandelsStatusCode method is now passed the current
NancyContext instance when being invoked. Also updated the XML comment
of the function + implementations

The model binder adapter will not pass in the NancyContext, of the
current request, into the IModelBinderLocator instances.

The engine and renderContext fields on HtmlHelper<TModel> were set to
public. Big boo boo =)

Just a few random bits and bobs