Window Manager
Keeps track of any child windows opened by the app. Only one instance of a child window of a given type can be open, and subsequent calls will result in that child window being brought to the front.
All window settings are stored in the config files.
Functions
openPreferences() - open preferences window using config.preferencesWindow
openAbout() - open about window using config.aboutWindow
openSecret() - open secret window using config.secretWindow
openWapuu() - open Wappu window using config.wapuu