Cross-desktop helpers

[Avi Alkalay]

I was getting ready to dive in some integration work like this.

The idea is to somehow integrate GConf and KConfig, so a KDE app can
configure a Gnome app, and vice-versa.

When configuration layer is integrated, we can explore more shared
capabilities: common desktop settings like fonts, background,
screensaver. Plus shared user mail settings, browser proxy, bookmarks,
last documents, home page, etc. And also user prefered apps for
browsing, mail, terminal, etc.