Authentication This class handles admin user authentication.
GeoWidget helper class which defines Google Maps geo widgets and their integration into the admin-side UI.
Maintenance This class factors out some functions which are done both interactively in the superadmin area and by scripts in utils/ to avoid code duplication across the two.
OptionDisplay We need to display previously set options in various forms. This class covers the ways to do that; the generated page content can then be parsed with OptionParser.
OptionParser This class parses HTML field input from POST and FILES and extracts valid and authorized options to be set.
UIElements This class provides various HTML snippets and other UI-related convenience functions.