Comment 2 for bug 787694

Discussed with Rodrigo; it's rather impractical to embed everything (python, gtk 2, ugly looking menu bars, etc.), so we'll instead just launch ubuntuone control center, software-properties, language-selector, jockey-gtk etc. as external programs from stub icons. For printers we might have some middle ground by using the printer list from the upstream capplet, but calling s-c-p for configuring the actual printers.