re #824 - Adding recursion when creating springboard admin menu and admin aggregate links pages.
re #824 - Adding all path aliases for Springboard Admin IA.
re #824 - Updating some menu router paths to work with new aliases.
re #824 - updating springboard_backend theme switch to apply to all pages under /springboard
re #824 - Updating Springboard Admin Menu to fit new Springboard IA