Some important changes in iconbar

Some important changes in iconbar
- Added a button to select or not the list of the users online
You can choise :
        Yes (for only Who is online ? icon)
        Yes with users list (for display users list,
                correct the bad english... )
        No (for no Who is online? icon)
- used radio box with Yes or No in the place of checkbox
to use the same way for all choices
- removed hardcoded color (altern table)
- added a banner to the return message: Your icon bar has been...
- CSS/HTML improvements
Test it