reactiveui/ReactiveUI — pull request #359 by terenced (2013-08-01 15:51:25+00:00)
Title: Set content to default if unable to resolve view with view locator

Handle case where ViewLocator is configured incorrectly, and returns a null view.
If view is null, content is set to default content.

related to https://github.com/reactiveui/ReactiveUI/issues/357