- Created CliApplication interface which defines a common inteface between CliApplications and controlling logic.

- Created QuickSetupCli which is a controller for running CliApplications

- Created CliApplicationHelper (and UninstallCliHelper) having methods for reading input, prompting the user etc.  Applications can delegate to the helper classes for these methods if necessary.

- Create a common Launcher class from which InstallLauncher and UninstallLauncher extend.  It has common ways of invoking the applications.  Setup overrides this behavior since it just ends up calling InstallDS.