Update version to v2.3
Update NuGet
Reorg Cocktail codebase for better maintainability
Update DevForce to v7.2.0
Reorg TempHire codebase for better maintainability.
Update samples to Cocktail v2.3.0
New overload for INavigator.NavigateAsync and new interface (INavigationTarget) to allow a view model to respond to navigation events.
Modify .gitignore and commit missing LoginView.Silverlight.xaml
Update API documentation
Clean up Test.Web project