KDElibs: KSystemTray: On window close dialog

[Sébastien Laoût [temporar]]

Hello,

I was away for some days.
But then I can work on the system tray message thing.

I implemented suggestions :
- Use KMessageBox::shouldBeShown to avoid useless computations
- Remove the Pixmap form the QMimeFactory after using
- Added API documentation
- Obtain application name from KGlobal
- Added a shadow to the circle
- NOT changed color from red to highlighted one because this is less
  visible: there are a lot less contrasts
- Some things I can't do (XComposite stuff, not urgent) is in comments

Then, the page with latest screenshots:
http://les83plus.free.fr/sebastien.laout/basket/usability-on-close-info.html
And the code is here:
http://les83plus.free.fr/sebastien.laout/basket/systray-close-message-into-kdelibs.txt

If everybody is OK I will (try to) commit.
Then, all KDE applications could start to use it.

Have a nice day,

Sébastien Laoût.